87522647 has 8 divisors (see below), whose sum is σ = 93020400. Its totient is φ = 82063744.

The previous prime is 87522637. The next prime is 87522671. The reversal of 87522647 is 74622578.

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 87522647 - 2²⁴ = 70745431 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 (87522637) 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, 4997 + ... + 14142.

It is an arithmetic number, because the mean of its divisors is an integer number (11627550).

Almost surely, 2^87522647 is an apocalyptic number.

87522647 is a deficient number, since it is larger than the sum of its proper divisors (5497753).

87522647 is a wasteful number, since it uses less digits than its factorization.

87522647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19425.

The product of its digits is 188160, while the sum is 41.

The square root of 87522647 is about 9355.3539216857. The cubic root of 87522647 is about 443.9902992091.

The spelling of 87522647 in words is "eighty-seven million, five hundred twenty-two thousand, six hundred forty-seven".