72627812 has 12 divisors (see below), whose sum is σ = 128224236. Its totient is φ = 35992320.

The previous prime is 72627809. The next prime is 72627847. The reversal of 72627812 is 21872627.

It can be written as a sum of positive squares in 2 ways, for example, as 20557156 + 52070656 = 4534^2 + 7216^2 .

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, 79889 + ... + 80792.

It is an arithmetic number, because the mean of its divisors is an integer number (10685353).

Almost surely, 2^72627812 is an apocalyptic number.

It is an amenable number.

72627812 is a deficient number, since it is larger than the sum of its proper divisors (55596424).

72627812 is a wasteful number, since it uses less digits than its factorization.

72627812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160798 (or 160796 counting only the distinct ones).

The product of its digits is 18816, while the sum is 35.

The square root of 72627812 is about 8522.1952570919. The cubic root of 72627812 is about 417.2224351794. Note that the first 3 decimals are identical.

The spelling of 72627812 in words is "seventy-two million, six hundred twenty-seven thousand, eight hundred twelve".