72539356 has 6 divisors (see below), whose sum is σ = 126943880. Its totient is φ = 36269676.

The previous prime is 72539339. The next prime is 72539387. The reversal of 72539356 is 65393527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9067416 + ... + 9067423.

Almost surely, 2^72539356 is an apocalyptic number.

It is an amenable number.

72539356 is a deficient number, since it is larger than the sum of its proper divisors (54404524).

72539356 is a wasteful number, since it uses less digits than its factorization.

72539356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18134843 (or 18134841 counting only the distinct ones).

The product of its digits is 170100, while the sum is 40.

The square root of 72539356 is about 8517.0039333089. The cubic root of 72539356 is about 417.0529830103.

The spelling of 72539356 in words is "seventy-two million, five hundred thirty-nine thousand, three hundred fifty-six".