87472697 has 8 divisors (see below), whose sum is σ = 94275720. Its totient is φ = 80680320.

The previous prime is 87472691. The next prime is 87472709. The reversal of 87472697 is 79627478.

It can be written as a sum of positive squares in 4 ways, for example, as 24492601 + 62980096 = 4949^2 + 7936^2 .

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 87472697 - 2⁴ = 87472681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87472691) 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, 25547 + ... + 28767.

It is an arithmetic number, because the mean of its divisors is an integer number (11784465).

Almost surely, 2^87472697 is an apocalyptic number.

It is an amenable number.

87472697 is a deficient number, since it is larger than the sum of its proper divisors (6803023).

87472697 is a wasteful number, since it uses less digits than its factorization.

87472697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5323.

The product of its digits is 1185408, while the sum is 50.

The square root of 87472697 is about 9352.6839463333. The cubic root of 87472697 is about 443.9058199858.

The spelling of 87472697 in words is "eighty-seven million, four hundred seventy-two thousand, six hundred ninety-seven".