72654657 has 16 divisors (see below), whose sum is σ = 100755840. Its totient is φ = 46513152.

The previous prime is 72654619. The next prime is 72654661. The reversal of 72654657 is 75645627.

It is not a de Polignac number, because 72654657 - 2¹⁵ = 72621889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72654557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14628 + ... + 18954.

It is an arithmetic number, because the mean of its divisors is an integer number (6297240).

Almost surely, 2^72654657 is an apocalyptic number.

It is an amenable number.

72654657 is a deficient number, since it is larger than the sum of its proper divisors (28101183).

72654657 is a wasteful number, since it uses less digits than its factorization.

72654657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4552.

The product of its digits is 352800, while the sum is 42.

The square root of 72654657 is about 8523.7701165623. The cubic root of 72654657 is about 417.2738340227.

The spelling of 72654657 in words is "seventy-two million, six hundred fifty-four thousand, six hundred fifty-seven".