920820535 has 8 divisors (see below), whose sum is σ = 1115925696. Its totient is φ = 729362400.

The previous prime is 920820491. The next prime is 920820547. The reversal of 920820535 is 535028029.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 920820535 - 2²¹ = 918723383 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 920820535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911199 + ... + 912208.

It is an arithmetic number, because the mean of its divisors is an integer number (139490712).

Almost surely, 2^920820535 is an apocalyptic number.

920820535 is a deficient number, since it is larger than the sum of its proper divisors (195105161).

920820535 is a wasteful number, since it uses less digits than its factorization.

920820535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823513.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 920820535 is about 30345.0248805303. The cubic root of 920820535 is about 972.8778863767.

The spelling of 920820535 in words is "nine hundred twenty million, eight hundred twenty thousand, five hundred thirty-five".