72858812 has 12 divisors (see below), whose sum is σ = 137310936. Its totient is φ = 33627120.

The previous prime is 72858803. The next prime is 72858829. The reversal of 72858812 is 21885827.

It is a self number, because there is not a number n which added to its sum of digits gives 72858812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700514 + ... + 700617.

It is an arithmetic number, because the mean of its divisors is an integer number (11442578).

Almost surely, 2^72858812 is an apocalyptic number.

It is an amenable number.

72858812 is a deficient number, since it is larger than the sum of its proper divisors (64452124).

72858812 is a wasteful number, since it uses less digits than its factorization.

72858812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401148 (or 1401146 counting only the distinct ones).

The product of its digits is 71680, while the sum is 41.

The square root of 72858812 is about 8535.7373436628. The cubic root of 72858812 is about 417.6643062281.

The spelling of 72858812 in words is "seventy-two million, eight hundred fifty-eight thousand, eight hundred twelve".