72688575 has 12 divisors (see below), whose sum is σ = 120178568. Its totient is φ = 38767200.

The previous prime is 72688573. The next prime is 72688601. The reversal of 72688575 is 57588627.

It is not a de Polignac number, because 72688575 - 2¹ = 72688573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72688571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 484516 + ... + 484665.

Almost surely, 2^72688575 is an apocalyptic number.

72688575 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

72688575 is a deficient number, since it is larger than the sum of its proper divisors (47489993).

72688575 is a wasteful number, since it uses less digits than its factorization.

72688575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969194 (or 969189 counting only the distinct ones).

The product of its digits is 940800, while the sum is 48.

The square root of 72688575 is about 8525.7594969598. The cubic root of 72688575 is about 417.3387571016.

The spelling of 72688575 in words is "seventy-two million, six hundred eighty-eight thousand, five hundred seventy-five".