920356839 has 12 divisors (see below), whose sum is σ = 1329739216. Its totient is φ = 613416672.

The previous prime is 920356817. The next prime is 920356859. The reversal of 920356839 is 938653029.

It is not a de Polignac number, because 920356839 - 2⁷ = 920356711 is a prime.

It is a super-2 number, since 2×920356839² = 1694113422188143842, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 920356794 and 920356803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920356859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33699 + ... + 54555.

Almost surely, 2^920356839 is an apocalyptic number.

920356839 is a deficient number, since it is larger than the sum of its proper divisors (409382377).

920356839 is a wasteful number, since it uses less digits than its factorization.

920356839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25766 (or 25763 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 920356839 is about 30337.3835226441. The cubic root of 920356839 is about 972.7145554808.

The spelling of 920356839 in words is "nine hundred twenty million, three hundred fifty-six thousand, eight hundred thirty-nine".