693321216 has 80 divisors (see below), whose sum is σ = 2110948224. Its totient is φ = 198088704.

The previous prime is 693321199. The next prime is 693321227. The reversal of 693321216 is 612123396.

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, 21490 + ... + 42993.

Almost surely, 2^693321216 is an apocalyptic number.

It is an amenable number.

693321216 is an abundant number, since it is smaller than the sum of its proper divisors (1417627008).

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

693321216 is an equidigital number, since it uses as much as digits as its factorization.

693321216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64511 (or 64495 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

The square root of 693321216 is about 26330.9934487858. The cubic root of 693321216 is about 885.0711066746.

The spelling of 693321216 in words is "six hundred ninety-three million, three hundred twenty-one thousand, two hundred sixteen".