72874057 has 4 divisors (see below), whose sum is σ = 72899200. Its totient is φ = 72848916.

The previous prime is 72874049. The next prime is 72874073. The reversal of 72874057 is 75047827.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75047827 = 23 ⋅3262949.

It is a cyclic number.

It is not a de Polignac number, because 72874057 - 2³ = 72874049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72874757) 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, 7557 + ... + 14242.

It is an arithmetic number, because the mean of its divisors is an integer number (18224800).

Almost surely, 2^72874057 is an apocalyptic number.

It is an amenable number.

72874057 is a deficient number, since it is larger than the sum of its proper divisors (25143).

72874057 is a wasteful number, since it uses less digits than its factorization.

72874057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25142.

The product of its (nonzero) digits is 109760, while the sum is 40.

The square root of 72874057 is about 8536.6303070942. The cubic root of 72874057 is about 417.6934349321.

The spelling of 72874057 in words is "seventy-two million, eight hundred seventy-four thousand, fifty-seven".