72527228 has 12 divisors (see below), whose sum is σ = 131017152. Its totient is φ = 35093760.

The previous prime is 72527209. The next prime is 72527269. The reversal of 72527228 is 82272527.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292325 + ... + 292572.

It is an arithmetic number, because the mean of its divisors is an integer number (10918096).

Almost surely, 2^72527228 is an apocalyptic number.

It is an amenable number.

72527228 is a deficient number, since it is larger than the sum of its proper divisors (58489924).

72527228 is a wasteful number, since it uses less digits than its factorization.

72527228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584932 (or 584930 counting only the distinct ones).

The product of its digits is 31360, while the sum is 35.

The square root of 72527228 is about 8516.2919160865. The cubic root of 72527228 is about 417.0297390741.

The spelling of 72527228 in words is "seventy-two million, five hundred twenty-seven thousand, two hundred twenty-eight".