87518651 has 8 divisors (see below), whose sum is σ = 95717808. Its totient is φ = 79360000.

The previous prime is 87518633. The next prime is 87518663. The reversal of 87518651 is 15681578.

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 87518651 - 2¹⁰ = 87517627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87518599 and 87518608.

It is not an unprimeable number, because it can be changed into a prime (87518671) 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, 5510 + ... + 14331.

It is an arithmetic number, because the mean of its divisors is an integer number (11964726).

Almost surely, 2^87518651 is an apocalyptic number.

87518651 is a deficient number, since it is larger than the sum of its proper divisors (8199157).

87518651 is a wasteful number, since it uses less digits than its factorization.

87518651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20253.

The product of its digits is 67200, while the sum is 41.

The square root of 87518651 is about 9355.1403516997. The cubic root of 87518651 is about 443.9835420542.

The spelling of 87518651 in words is "eighty-seven million, five hundred eighteen thousand, six hundred fifty-one".