921943036 has 18 divisors (see below), whose sum is σ = 1876813008. Its totient is φ = 395118360.

The previous prime is 921942991. The next prime is 921943067. The reversal of 921943036 is 630349129.

It is a junction number, because it is equal to n+sod(n) for n = 921942986 and 921943004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2351700 + ... + 2352091.

Almost surely, 2^921943036 is an apocalyptic number.

It is an amenable number.

921943036 is an abundant number, since it is smaller than the sum of its proper divisors (954869972).

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

921943036 is a wasteful number, since it uses less digits than its factorization.

921943036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4703809 (or 4703800 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 921943036 is about 30363.5148821740. The cubic root of 921943036 is about 973.2730458791.

The spelling of 921943036 in words is "nine hundred twenty-one million, nine hundred forty-three thousand, thirty-six".