72527386 has 4 divisors (see below), whose sum is σ = 108791082. Its totient is φ = 36263692.

The previous prime is 72527359. The next prime is 72527407. The reversal of 72527386 is 68372527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68372527 = 2371 ⋅28837.

It can be written as a sum of positive squares in only one way, i.e., 61136761 + 11390625 = 7819^2 + 3375^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18131845 + ... + 18131848.

Almost surely, 2^72527386 is an apocalyptic number.

72527386 is a deficient number, since it is larger than the sum of its proper divisors (36263696).

72527386 is a wasteful number, since it uses less digits than its factorization.

72527386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36263695.

The product of its digits is 141120, while the sum is 40.

The square root of 72527386 is about 8516.3011924192. The cubic root of 72527386 is about 417.0300419059.

The spelling of 72527386 in words is "seventy-two million, five hundred twenty-seven thousand, three hundred eighty-six".