72217802 has 32 divisors (see below), whose sum is σ = 117536832. Its totient is φ = 33156864.

The previous prime is 72217793. The next prime is 72217813. The reversal of 72217802 is 20871227.

It is a super-2 number, since 2×72217802² = 10430821851422408, which contains 22 as substring.

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, 442973 + ... + 443135.

It is an arithmetic number, because the mean of its divisors is an integer number (3673026).

Almost surely, 2^72217802 is an apocalyptic number.

72217802 is a deficient number, since it is larger than the sum of its proper divisors (45319030).

72217802 is a wasteful number, since it uses less digits than its factorization.

72217802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 72217802 is about 8498.1057889391. The cubic root of 72217802 is about 416.4358297558.

The spelling of 72217802 in words is "seventy-two million, two hundred seventeen thousand, eight hundred two".