72649716 has 24 divisors (see below), whose sum is σ = 169681344. Its totient is φ = 24192960.

The previous prime is 72649693. The next prime is 72649723. The reversal of 72649716 is 61794627.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13561 + ... + 18143.

It is an arithmetic number, because the mean of its divisors is an integer number (7070056).

Almost surely, 2^72649716 is an apocalyptic number.

It is an amenable number.

72649716 is an abundant number, since it is smaller than the sum of its proper divisors (97031628).

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

72649716 is a wasteful number, since it uses less digits than its factorization.

72649716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5911 (or 5909 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 72649716 is about 8523.4802750989. The cubic root of 72649716 is about 417.2643746761.

The spelling of 72649716 in words is "seventy-two million, six hundred forty-nine thousand, seven hundred sixteen".