72957237 has 8 divisors (see below), whose sum is σ = 97320960. Its totient is φ = 48615840.

The previous prime is 72957223. The next prime is 72957239. The reversal of 72957237 is 73275927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72957237 - 2⁴ = 72957221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72957239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4812 + ... + 13002.

It is an arithmetic number, because the mean of its divisors is an integer number (12165120).

Almost surely, 2^72957237 is an apocalyptic number.

It is an amenable number.

72957237 is a deficient number, since it is larger than the sum of its proper divisors (24363723).

72957237 is a wasteful number, since it uses less digits than its factorization.

72957237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11163.

The product of its digits is 185220, while the sum is 42.

The square root of 72957237 is about 8541.5008634314. The cubic root of 72957237 is about 417.8522958978.

The spelling of 72957237 in words is "seventy-two million, nine hundred fifty-seven thousand, two hundred thirty-seven".