72912376 has 8 divisors (see below), whose sum is σ = 136710720. Its totient is φ = 36456184.

The previous prime is 72912353. The next prime is 72912379. The reversal of 72912376 is 67321927.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72912379) 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 as a sum of consecutive naturals, namely, 4557016 + ... + 4557031.

It is an arithmetic number, because the mean of its divisors is an integer number (17088840).

Almost surely, 2^72912376 is an apocalyptic number.

It is an amenable number.

72912376 is a deficient number, since it is larger than the sum of its proper divisors (63798344).

72912376 is a wasteful number, since it uses less digits than its factorization.

72912376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9114053 (or 9114049 counting only the distinct ones).

The product of its digits is 31752, while the sum is 37.

The square root of 72912376 is about 8538.8743988889. The cubic root of 72912376 is about 417.7666333186.

The spelling of 72912376 in words is "seventy-two million, nine hundred twelve thousand, three hundred seventy-six".