216895704 has 32 divisors (see below), whose sum is σ = 565816320. Its totient is φ = 69154976.

The previous prime is 216895691. The next prime is 216895711. The reversal of 216895704 is 407598612.

216895704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 195912 + ... + 197015.

It is an arithmetic number, because the mean of its divisors is an integer number (17681760).

Almost surely, 2^216895704 is an apocalyptic number.

216895704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

216895704 is an abundant number, since it is smaller than the sum of its proper divisors (348920616).

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

216895704 is a wasteful number, since it uses less digits than its factorization.

216895704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392959 (or 392955 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 216895704 is about 14727.3794002871. The cubic root of 216895704 is about 600.8282118049.

The spelling of 216895704 in words is "two hundred sixteen million, eight hundred ninety-five thousand, seven hundred four".