72600631 has 4 divisors (see below), whose sum is σ = 72621232. Its totient is φ = 72580032.

The previous prime is 72600613. The next prime is 72600637. The reversal of 72600631 is 13600627.

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

It is a cyclic number.

It is not a de Polignac number, because 72600631 - 2⁹ = 72600119 is a prime.

It is a super-2 number, since 2×72600631² = 10541703243196322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72600596 and 72600605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72600637) 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, 3531 + ... + 12556.

It is an arithmetic number, because the mean of its divisors is an integer number (18155308).

Almost surely, 2^72600631 is an apocalyptic number.

72600631 is a deficient number, since it is larger than the sum of its proper divisors (20601).

72600631 is a wasteful number, since it uses less digits than its factorization.

72600631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20600.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 72600631 is about 8520.6003896439. The cubic root of 72600631 is about 417.1703801070.

The spelling of 72600631 in words is "seventy-two million, six hundred thousand, six hundred thirty-one".