72682785 has 32 divisors (see below), whose sum is σ = 147674880. Its totient is φ = 33225984.

The previous prime is 72682777. The next prime is 72682789. The reversal of 72682785 is 58728627.

It is not a de Polignac number, because 72682785 - 2³ = 72682777 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 72682785.

It is not an unprimeable number, because it can be changed into a prime (72682789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37512 + ... + 39401.

It is an arithmetic number, because the mean of its divisors is an integer number (4614840).

Almost surely, 2^72682785 is an apocalyptic number.

It is an amenable number.

72682785 is an abundant number, since it is smaller than the sum of its proper divisors (74992095).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72682785 is a wasteful number, since it uses less digits than its factorization.

72682785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76934 (or 76928 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 72682785 is about 8525.4199310063. The cubic root of 72682785 is about 417.3276757839.

The spelling of 72682785 in words is "seventy-two million, six hundred eighty-two thousand, seven hundred eighty-five".