921992674 has 16 divisors (see below), whose sum is σ = 1466781120. Its totient is φ = 433722960.

The previous prime is 921992641. The next prime is 921992683. The reversal of 921992674 is 476299129.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161484 + ... + 167095.

It is an arithmetic number, because the mean of its divisors is an integer number (91673820).

Almost surely, 2^921992674 is an apocalyptic number.

921992674 is a deficient number, since it is larger than the sum of its proper divisors (544788446).

921992674 is a wasteful number, since it uses less digits than its factorization.

921992674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328665.

The product of its digits is 489888, while the sum is 49.

The square root of 921992674 is about 30364.3322666579. The cubic root of 921992674 is about 973.2905127791.

The spelling of 921992674 in words is "nine hundred twenty-one million, nine hundred ninety-two thousand, six hundred seventy-four".