72740485 has 8 divisors (see below), whose sum is σ = 88484760. Its totient is φ = 57394944.

The previous prime is 72740441. The next prime is 72740489. The reversal of 72740485 is 58404727.

72740485 is nontrivially palindromic in base 9.

It can be written as a sum of positive squares in 4 ways, for example, as 4941729 + 67798756 = 2223^2 + 8234^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 72740485 - 2¹⁹ = 72216197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72740489) 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, 99280 + ... + 100009.

It is an arithmetic number, because the mean of its divisors is an integer number (11060595).

Almost surely, 2^72740485 is an apocalyptic number.

It is an amenable number.

72740485 is a deficient number, since it is larger than the sum of its proper divisors (15744275).

72740485 is a wasteful number, since it uses less digits than its factorization.

72740485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199367.

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 72740485 is about 8528.8032571985. The cubic root of 72740485 is about 417.4380799083.

The spelling of 72740485 in words is "seventy-two million, seven hundred forty thousand, four hundred eighty-five".