72710990 has 16 divisors (see below), whose sum is σ = 142778160. Its totient is φ = 26440320.

The previous prime is 72710983. The next prime is 72711007. The reversal of 72710990 is 9901727.

It is a self number, because there is not a number n which added to its sum of digits gives 72710990.

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, 330395 + ... + 330614.

It is an arithmetic number, because the mean of its divisors is an integer number (8923635).

Almost surely, 2^72710990 is an apocalyptic number.

72710990 is a deficient number, since it is larger than the sum of its proper divisors (70067170).

72710990 is a wasteful number, since it uses less digits than its factorization.

72710990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661027.

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 72710990 is about 8527.0739412767. The cubic root of 72710990 is about 417.3816509898.

The spelling of 72710990 in words is "seventy-two million, seven hundred ten thousand, nine hundred ninety".