920709087 has 16 divisors (see below), whose sum is σ = 1296812160. Its totient is φ = 579435552.

The previous prime is 920709019. The next prime is 920709131. The reversal of 920709087 is 780907029.

It is not a de Polignac number, because 920709087 - 2²⁸ = 652273631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920709017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12408 + ... + 44669.

It is an arithmetic number, because the mean of its divisors is an integer number (81050760).

Almost surely, 2^920709087 is an apocalyptic number.

920709087 is a deficient number, since it is larger than the sum of its proper divisors (376103073).

920709087 is a wasteful number, since it uses less digits than its factorization.

920709087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57382.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 920709087 is about 30343.1884778116. The cubic root of 920709087 is about 972.8386352721.

The spelling of 920709087 in words is "nine hundred twenty million, seven hundred nine thousand, eighty-seven".