72708953 has 8 divisors (see below), whose sum is σ = 78165120. Its totient is φ = 67415760.

The previous prime is 72708947. The next prime is 72708971. The reversal of 72708953 is 35980727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72708953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72708953.

It is not an unprimeable number, because it can be changed into a prime (72708253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39818 + ... + 41603.

It is an arithmetic number, because the mean of its divisors is an integer number (9770640).

Almost surely, 2^72708953 is an apocalyptic number.

It is an amenable number.

72708953 is a deficient number, since it is larger than the sum of its proper divisors (5456167).

72708953 is a wasteful number, since it uses less digits than its factorization.

72708953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81487.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 72708953 is about 8526.9544973572. The cubic root of 72708953 is about 417.3777533013.

The spelling of 72708953 in words is "seventy-two million, seven hundred eight thousand, nine hundred fifty-three".