920834197 has 4 divisors (see below), whose sum is σ = 920910060. Its totient is φ = 920758336.

The previous prime is 920834179. The next prime is 920834203. The reversal of 920834197 is 791438029.

920834197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 732568356 + 188265841 = 27066^2 + 13721^2 .

It is a 3-Lehmer number, since φ(920834197) divides (920834197-1)³.

It is a cyclic number.

It is not a de Polignac number, because 920834197 - 2¹⁵ = 920801429 is a prime.

It is a deceptive number, since it divides R_920834196.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920834177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15172 + ... + 45517.

It is an arithmetic number, because the mean of its divisors is an integer number (230227515).

It is a Poulet number, since it divides 2^920834196-1.

Almost surely, 2^920834197 is an apocalyptic number.

920834197 is the 15173-rd decagonal number.

It is an amenable number.

920834197 is a deficient number, since it is larger than the sum of its proper divisors (75863).

920834197 is a wasteful number, since it uses less digits than its factorization.

920834197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75862.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 920834197 is about 30345.2499907317. The cubic root of 920834197 is about 972.8826978071.

The spelling of 920834197 in words is "nine hundred twenty million, eight hundred thirty-four thousand, one hundred ninety-seven".