72237475 has 6 divisors (see below), whose sum is σ = 89574500. Its totient is φ = 57789960.

The previous prime is 72237467. The next prime is 72237479. The reversal of 72237475 is 57473227.

It is not a de Polignac number, because 72237475 - 2³ = 72237467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72237479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1444725 + ... + 1444774.

Almost surely, 2^72237475 is an apocalyptic number.

72237475 is a deficient number, since it is larger than the sum of its proper divisors (17337025).

72237475 is a wasteful number, since it uses less digits than its factorization.

72237475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889509 (or 2889504 counting only the distinct ones).

The product of its digits is 82320, while the sum is 37.

The square root of 72237475 is about 8499.2632033606. The cubic root of 72237475 is about 416.4736403696.

The spelling of 72237475 in words is "seventy-two million, two hundred thirty-seven thousand, four hundred seventy-five".