72688270 has 8 divisors (see below), whose sum is σ = 130838904. Its totient is φ = 29075304.

The previous prime is 72688247. The next prime is 72688283. The reversal of 72688270 is 7288627.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3634404 + ... + 3634423.

It is an arithmetic number, because the mean of its divisors is an integer number (16354863).

Almost surely, 2^72688270 is an apocalyptic number.

72688270 is a deficient number, since it is larger than the sum of its proper divisors (58150634).

72688270 is a wasteful number, since it uses less digits than its factorization.

72688270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7268834.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 72688270 is about 8525.7416099715. The cubic root of 72688270 is about 417.3381733854.

The spelling of 72688270 in words is "seventy-two million, six hundred eighty-eight thousand, two hundred seventy".