72708859 has 4 divisors (see below), whose sum is σ = 74255904. Its totient is φ = 71161816.

The previous prime is 72708841. The next prime is 72708863. The reversal of 72708859 is 95880727.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72708859 - 2⁷ = 72708731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72708809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773452 + ... + 773545.

It is an arithmetic number, because the mean of its divisors is an integer number (18563976).

Almost surely, 2^72708859 is an apocalyptic number.

72708859 is a deficient number, since it is larger than the sum of its proper divisors (1547045).

72708859 is a wasteful number, since it uses less digits than its factorization.

72708859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547044.

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 72708859 is about 8526.9489854226. The cubic root of 72708859 is about 417.3775734357.

It can be divided in two parts, 7270 and 8859, that added together give a square (16129 = 127²).

The spelling of 72708859 in words is "seventy-two million, seven hundred eight thousand, eight hundred fifty-nine".