72394575 has 24 divisors (see below), whose sum is σ = 130574976. Its totient is φ = 35100000.

The previous prime is 72394571. The next prime is 72394577. The reversal of 72394575 is 57549327.

It is not a de Polignac number, because 72394575 - 2² = 72394571 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72394571) 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 23 ways as a sum of consecutive naturals, for example, 43051 + ... + 44700.

It is an arithmetic number, because the mean of its divisors is an integer number (5440624).

Almost surely, 2^72394575 is an apocalyptic number.

72394575 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

72394575 is a deficient number, since it is larger than the sum of its proper divisors (58180401).

72394575 is a wasteful number, since it uses less digits than its factorization.

72394575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87775 (or 87770 counting only the distinct ones).

The product of its digits is 264600, while the sum is 42.

The square root of 72394575 is about 8508.5001616031. The cubic root of 72394575 is about 416.7753334350.

The spelling of 72394575 in words is "seventy-two million, three hundred ninety-four thousand, five hundred seventy-five".