72675747 has 6 divisors (see below), whose sum is σ = 104976092. Its totient is φ = 48450492.

The previous prime is 72675727. The next prime is 72675751. The reversal of 72675747 is 74757627.

72675747 is a `hidden beast` number, since 72 + 6 + 7 + 574 + 7 = 666.

It is not a de Polignac number, because 72675747 - 2¹⁶ = 72610211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72675727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4037533 + ... + 4037550.

Almost surely, 2^72675747 is an apocalyptic number.

72675747 is a deficient number, since it is larger than the sum of its proper divisors (32300345).

72675747 is a wasteful number, since it uses less digits than its factorization.

72675747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8075089 (or 8075086 counting only the distinct ones).

The product of its digits is 576240, while the sum is 45.

The square root of 72675747 is about 8525.0071554222. The cubic root of 72675747 is about 417.3142051618.

The spelling of 72675747 in words is "seventy-two million, six hundred seventy-five thousand, seven hundred forty-seven".