921670332 has 48 divisors (see below), whose sum is σ = 2370289152. Its totient is φ = 276410880.

The previous prime is 921670307. The next prime is 921670357. The reversal of 921670332 is 233076129.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (921670307) and next prime (921670357).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 921670293 and 921670302.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 23188 + ... + 48795.

It is an arithmetic number, because the mean of its divisors is an integer number (49381024).

Almost surely, 2^921670332 is an apocalyptic number.

It is an amenable number.

921670332 is an abundant number, since it is smaller than the sum of its proper divisors (1448618820).

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

921670332 is a wasteful number, since it uses less digits than its factorization.

921670332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72098 (or 72096 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 921670332 is about 30359.0238973522. The cubic root of 921670332 is about 973.1770740689.

The spelling of 921670332 in words is "nine hundred twenty-one million, six hundred seventy thousand, three hundred thirty-two".