72617485 has 8 divisors (see below), whose sum is σ = 88004376. Its totient is φ = 57518400.

The previous prime is 72617483. The next prime is 72617513. The reversal of 72617485 is 58471627.

It can be written as a sum of positive squares in 4 ways, for example, as 5982916 + 66634569 = 2446^2 + 8163^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72617485 - 2¹ = 72617483 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 (72617483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71394 + ... + 72403.

It is an arithmetic number, because the mean of its divisors is an integer number (11000547).

Almost surely, 2^72617485 is an apocalyptic number.

It is an amenable number.

72617485 is a deficient number, since it is larger than the sum of its proper divisors (15386891).

72617485 is a wasteful number, since it uses less digits than its factorization.

72617485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143903.

The product of its digits is 94080, while the sum is 40.

The square root of 72617485 is about 8521.5893470643. The cubic root of 72617485 is about 417.2026591910.

The spelling of 72617485 in words is "seventy-two million, six hundred seventeen thousand, four hundred eighty-five".