72702012 has 24 divisors (see below), whose sum is σ = 172029312. Its totient is φ = 23892400.

The previous prime is 72702001. The next prime is 72702023. The reversal of 72702012 is 21020727.

It is an interprime number because it is at equal distance from previous prime (72702001) and next prime (72702023).

It is a self number, because there is not a number n which added to its sum of digits gives 72702012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41814 + ... + 43517.

It is an arithmetic number, because the mean of its divisors is an integer number (7167888).

Almost surely, 2^72702012 is an apocalyptic number.

It is an amenable number.

72702012 is an abundant number, since it is smaller than the sum of its proper divisors (99327300).

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

72702012 is a wasteful number, since it uses less digits than its factorization.

72702012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85409 (or 85407 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 72702012 is about 8526.5474841814. The cubic root of 72702012 is about 417.3644715295.

Adding to 72702012 its reverse (21020727), we get a palindrome (93722739).

The spelling of 72702012 in words is "seventy-two million, seven hundred two thousand, twelve".