921955196 has 24 divisors (see below), whose sum is σ = 1692296256. Its totient is φ = 438972480.

The previous prime is 921955171. The next prime is 921955213. The reversal of 921955196 is 691559129.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 921955196.

It is a congruent number.

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, 59315 + ... + 73226.

It is an arithmetic number, because the mean of its divisors is an integer number (70512344).

Almost surely, 2^921955196 is an apocalyptic number.

It is an amenable number.

921955196 is a deficient number, since it is larger than the sum of its proper divisors (770341060).

921955196 is a wasteful number, since it uses less digits than its factorization.

921955196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132629 (or 132627 counting only the distinct ones).

The product of its digits is 218700, while the sum is 47.

The square root of 921955196 is about 30363.7151218358. The cubic root of 921955196 is about 973.2773248667.

The spelling of 921955196 in words is "nine hundred twenty-one million, nine hundred fifty-five thousand, one hundred ninety-six".