72685698 has 8 divisors (see below), whose sum is σ = 145371408. Its totient is φ = 24228564.

The previous prime is 72685667. The next prime is 72685703. The reversal of 72685698 is 89658627.

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

72685698 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 72685698.

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, 6057136 + ... + 6057147.

It is an arithmetic number, because the mean of its divisors is an integer number (18171426).

Almost surely, 2^72685698 is an apocalyptic number.

72685698 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72685698 is a wasteful number, since it uses less digits than its factorization.

72685698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12114288.

The product of its digits is 1451520, while the sum is 51.

The square root of 72685698 is about 8525.5907713190. The cubic root of 72685698 is about 417.3332509660. Note that the first 3 decimals are identical.

The spelling of 72685698 in words is "seventy-two million, six hundred eighty-five thousand, six hundred ninety-eight".