72716782 has 8 divisors (see below), whose sum is σ = 109133136. Its totient is φ = 36339072.

The previous prime is 72716773. The next prime is 72716783. The reversal of 72716782 is 28761727.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72716783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4378 + ... + 12829.

It is an arithmetic number, because the mean of its divisors is an integer number (13641642).

Almost surely, 2^72716782 is an apocalyptic number.

72716782 is a deficient number, since it is larger than the sum of its proper divisors (36416354).

72716782 is a wasteful number, since it uses less digits than its factorization.

72716782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19322.

The product of its digits is 65856, while the sum is 40.

The square root of 72716782 is about 8527.4135586355. The cubic root of 72716782 is about 417.3927332684.

The spelling of 72716782 in words is "seventy-two million, seven hundred sixteen thousand, seven hundred eighty-two".