72388679 has 8 divisors (see below), whose sum is σ = 79043472. Its totient is φ = 65746240.

The previous prime is 72388649. The next prime is 72388697. The reversal of 72388679 is 97688327.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 72388679 - 2¹² = 72384583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72388649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12707 + ... + 17499.

It is an arithmetic number, because the mean of its divisors is an integer number (9880434).

Almost surely, 2^72388679 is an apocalyptic number.

72388679 is a deficient number, since it is larger than the sum of its proper divisors (6654793).

72388679 is a wasteful number, since it uses less digits than its factorization.

72388679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6177.

The product of its digits is 1016064, while the sum is 50.

The square root of 72388679 is about 8508.1536775025. The cubic root of 72388679 is about 416.7640187102.

The spelling of 72388679 in words is "seventy-two million, three hundred eighty-eight thousand, six hundred seventy-nine".