72725627 has 4 divisors (see below), whose sum is σ = 78319920. Its totient is φ = 67131336.

The previous prime is 72725617. The next prime is 72725629. The reversal of 72725627 is 72652727.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72725627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72725629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2797127 + ... + 2797152.

It is an arithmetic number, because the mean of its divisors is an integer number (19579980).

Almost surely, 2^72725627 is an apocalyptic number.

72725627 is a deficient number, since it is larger than the sum of its proper divisors (5594293).

72725627 is a wasteful number, since it uses less digits than its factorization.

72725627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5594292.

The product of its digits is 82320, while the sum is 38.

The square root of 72725627 is about 8527.9321643643. The cubic root of 72725627 is about 417.4096559509.

Subtracting from 72725627 its reverse (72652727), we obtain a square (72900 = 270²).

The spelling of 72725627 in words is "seventy-two million, seven hundred twenty-five thousand, six hundred twenty-seven".