216864802 has 32 divisors (see below), whose sum is σ = 406425600. Its totient is φ = 84313680.

The previous prime is 216864799. The next prime is 216864839. The reversal of 216864802 is 208468612.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89199 + ... + 91597.

It is an arithmetic number, because the mean of its divisors is an integer number (12700800).

Almost surely, 2^216864802 is an apocalyptic number.

216864802 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

216864802 is a deficient number, since it is larger than the sum of its proper divisors (189560798).

216864802 is a wasteful number, since it uses less digits than its factorization.

216864802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 216864802 is about 14726.3302285396. The cubic root of 216864802 is about 600.7996763154.

The spelling of 216864802 in words is "two hundred sixteen million, eight hundred sixty-four thousand, eight hundred two".