72898208 has 12 divisors (see below), whose sum is σ = 143518410. Its totient is φ = 36449088.

The previous prime is 72898207. The next prime is 72898213. The reversal of 72898208 is 80289827.

It can be written as a sum of positive squares in only one way, i.e., 53993104 + 18905104 = 7348^2 + 4348^2 .

It is a super-2 number, since 2×72898208² = 10628297459222528, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (72898207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139003 + ... + 1139066.

Almost surely, 2^72898208 is an apocalyptic number.

It is an amenable number.

72898208 is a deficient number, since it is larger than the sum of its proper divisors (70620202).

72898208 is a wasteful number, since it uses less digits than its factorization.

72898208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278079 (or 2278071 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 72898208 is about 8538.0447410400. The cubic root of 72898208 is about 417.7395720641.

The spelling of 72898208 in words is "seventy-two million, eight hundred ninety-eight thousand, two hundred eight".