72387396 has 36 divisors (see below), whose sum is σ = 183731184. Its totient is φ = 24030000.

The previous prime is 72387389. The next prime is 72387401. The reversal of 72387396 is 69378327.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5031 + ... + 13041.

It is an arithmetic number, because the mean of its divisors is an integer number (5103644).

Almost surely, 2^72387396 is an apocalyptic number.

It is an amenable number.

72387396 is an abundant number, since it is smaller than the sum of its proper divisors (111343788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72387396 is a wasteful number, since it uses less digits than its factorization.

72387396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8272 (or 8267 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 72387396 is about 8508.0782789065. The cubic root of 72387396 is about 416.7615564864.

The spelling of 72387396 in words is "seventy-two million, three hundred eighty-seven thousand, three hundred ninety-six".