911979928 has 8 divisors (see below), whose sum is σ = 1709962380. Its totient is φ = 455989960.

The previous prime is 911979919. The next prime is 911979931. The reversal of 911979928 is 829979119.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56998738 + ... + 56998753.

Almost surely, 2^911979928 is an apocalyptic number.

It is an amenable number.

911979928 is a deficient number, since it is larger than the sum of its proper divisors (797982452).

911979928 is a wasteful number, since it uses less digits than its factorization.

911979928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113997497 (or 113997493 counting only the distinct ones).

The product of its digits is 734832, while the sum is 55.

The square root of 911979928 is about 30199.0054140861. The cubic root of 911979928 is about 969.7544026958.

The spelling of 911979928 in words is "nine hundred eleven million, nine hundred seventy-nine thousand, nine hundred twenty-eight".