921879696 has 40 divisors (see below), whose sum is σ = 2506868320. Its totient is φ = 291119616.

The previous prime is 921879683. The next prime is 921879703. The reversal of 921879696 is 696978129.

It is a Harshad number since it is a multiple of its sum of digits (57).

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, 504505 + ... + 506328.

It is an arithmetic number, because the mean of its divisors is an integer number (62671708).

Almost surely, 2^921879696 is an apocalyptic number.

It is an amenable number.

921879696 is an abundant number, since it is smaller than the sum of its proper divisors (1584988624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

921879696 is a wasteful number, since it uses less digits than its factorization.

921879696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010863 (or 1010857 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 57.

The square root of 921879696 is about 30362.4718361335. The cubic root of 921879696 is about 973.2507565315.

The spelling of 921879696 in words is "nine hundred twenty-one million, eight hundred seventy-nine thousand, six hundred ninety-six".