72397754 has 32 divisors (see below), whose sum is σ = 128447424. Its totient is φ = 30170880.

The previous prime is 72397739. The next prime is 72397769. The reversal of 72397754 is 45779327.

It is an interprime number because it is at equal distance from previous prime (72397739) and next prime (72397769).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 45842 + ... + 47394.

It is an arithmetic number, because the mean of its divisors is an integer number (4013982).

Almost surely, 2^72397754 is an apocalyptic number.

72397754 is a deficient number, since it is larger than the sum of its proper divisors (56049670).

72397754 is a wasteful number, since it uses less digits than its factorization.

72397754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742.

The product of its digits is 370440, while the sum is 44.

The square root of 72397754 is about 8508.6869727356. The cubic root of 72397754 is about 416.7814338433.

The spelling of 72397754 in words is "seventy-two million, three hundred ninety-seven thousand, seven hundred fifty-four".