920936497 has 4 divisors (see below), whose sum is σ = 991777780. Its totient is φ = 850095216.

The previous prime is 920936453. The next prime is 920936501. The reversal of 920936497 is 794639029.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 415181376 + 505755121 = 20376^2 + 22489^2 .

It is a cyclic number.

It is not a de Polignac number, because 920936497 - 2¹¹ = 920934449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 920936497.

It is not an unprimeable number, because it can be changed into a prime (920930497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35420622 + ... + 35420647.

It is an arithmetic number, because the mean of its divisors is an integer number (247944445).

Almost surely, 2^920936497 is an apocalyptic number.

It is an amenable number.

920936497 is a deficient number, since it is larger than the sum of its proper divisors (70841283).

920936497 is a wasteful number, since it uses less digits than its factorization.

920936497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70841282.

The product of its (nonzero) digits is 734832, while the sum is 49.

The square root of 920936497 is about 30346.9355454550. The cubic root of 920936497 is about 972.9187239144.

The spelling of 920936497 in words is "nine hundred twenty million, nine hundred thirty-six thousand, four hundred ninety-seven".