72607144 has 16 divisors (see below), whose sum is σ = 136285920. Its totient is φ = 36264240.

The previous prime is 72607127. The next prime is 72607147. The reversal of 72607144 is 44170627.

It is not an unprimeable number, because it can be changed into a prime (72607147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3847 + ... + 12649.

It is an arithmetic number, because the mean of its divisors is an integer number (8517870).

Almost surely, 2^72607144 is an apocalyptic number.

It is an amenable number.

72607144 is a deficient number, since it is larger than the sum of its proper divisors (63678776).

72607144 is a wasteful number, since it uses less digits than its factorization.

72607144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9840 (or 9836 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 72607144 is about 8520.9825724502. The cubic root of 72607144 is about 417.1828545140.

The spelling of 72607144 in words is "seventy-two million, six hundred seven thousand, one hundred forty-four".