72348939 has 24 divisors (see below), whose sum is σ = 116429040. Its totient is φ = 42985152.

The previous prime is 72348917. The next prime is 72348967. The reversal of 72348939 is 93984327.

It is a happy number.

It is not a de Polignac number, because 72348939 - 2¹⁶ = 72283403 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72348894 and 72348903.

It is not an unprimeable number, because it can be changed into a prime (72343939) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7269 + ... + 14054.

It is an arithmetic number, because the mean of its divisors is an integer number (4851210).

Almost surely, 2^72348939 is an apocalyptic number.

72348939 is a deficient number, since it is larger than the sum of its proper divisors (44080101).

72348939 is a wasteful number, since it uses less digits than its factorization.

72348939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21371 (or 21368 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 72348939 is about 8505.8179500857. The cubic root of 72348939 is about 416.6877395920.

The spelling of 72348939 in words is "seventy-two million, three hundred forty-eight thousand, nine hundred thirty-nine".