73372457 has 4 divisors (see below), whose sum is σ = 73569540. Its totient is φ = 73175376.

The previous prime is 73372441. The next prime is 73372463. The reversal of 73372457 is 75427337.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13402921 + 59969536 = 3661^2 + 7744^2 .

It is a cyclic number.

It is not a de Polignac number, because 73372457 - 2⁴ = 73372441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73372457.

It is not an unprimeable number, because it can be changed into a prime (73372417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97982 + ... + 98727.

It is an arithmetic number, because the mean of its divisors is an integer number (18392385).

Almost surely, 2^73372457 is an apocalyptic number.

It is an amenable number.

73372457 is a deficient number, since it is larger than the sum of its proper divisors (197083).

73372457 is a wasteful number, since it uses less digits than its factorization.

73372457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197082.

The product of its digits is 123480, while the sum is 38.

The square root of 73372457 is about 8565.7724111723. The cubic root of 73372457 is about 418.6435014832.

The spelling of 73372457 in words is "seventy-three million, three hundred seventy-two thousand, four hundred fifty-seven".