72508847 has 4 divisors (see below), whose sum is σ = 72630096. Its totient is φ = 72387600.

The previous prime is 72508831. The next prime is 72508853. The reversal of 72508847 is 74880527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74880527 = 463 ⋅161729.

It is a cyclic number.

It is not a de Polignac number, because 72508847 - 2⁴ = 72508831 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 (72508147) 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, 59723 + ... + 60924.

It is an arithmetic number, because the mean of its divisors is an integer number (18157524).

Almost surely, 2^72508847 is an apocalyptic number.

72508847 is a deficient number, since it is larger than the sum of its proper divisors (121249).

72508847 is a wasteful number, since it uses less digits than its factorization.

72508847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121248.

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 72508847 is about 8515.2126808436. The cubic root of 72508847 is about 416.9945060014.

The spelling of 72508847 in words is "seventy-two million, five hundred eight thousand, eight hundred forty-seven".