72683685 has 24 divisors (see below), whose sum is σ = 130051584. Its totient is φ = 37513440.

The previous prime is 72683669. The next prime is 72683711. The reversal of 72683685 is 58638627.

It is not a de Polignac number, because 72683685 - 2⁴ = 72683669 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72683685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24657 + ... + 27446.

It is an arithmetic number, because the mean of its divisors is an integer number (5418816).

Almost surely, 2^72683685 is an apocalyptic number.

It is an amenable number.

72683685 is a deficient number, since it is larger than the sum of its proper divisors (57367899).

72683685 is a wasteful number, since it uses less digits than its factorization.

72683685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52145 (or 52142 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 72683685 is about 8525.4727141666. The cubic root of 72683685 is about 417.3293983072.

The spelling of 72683685 in words is "seventy-two million, six hundred eighty-three thousand, six hundred eighty-five".