72397804 has 12 divisors (see below), whose sum is σ = 131065200. Its totient is φ = 34950608.

The previous prime is 72397769. The next prime is 72397807. The reversal of 72397804 is 40879327.

It is not an unprimeable number, because it can be changed into a prime (72397807) 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 in 3 ways as a sum of consecutive naturals, for example, 311944 + ... + 312175.

It is an arithmetic number, because the mean of its divisors is an integer number (10922100).

Almost surely, 2^72397804 is an apocalyptic number.

It is an amenable number.

72397804 is a deficient number, since it is larger than the sum of its proper divisors (58667396).

72397804 is a wasteful number, since it uses less digits than its factorization.

72397804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624152 (or 624150 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 72397804 is about 8508.6899109087. The cubic root of 72397804 is about 416.7815297904.

The spelling of 72397804 in words is "seventy-two million, three hundred ninety-seven thousand, eight hundred four".