87634651 has 8 divisors (see below), whose sum is σ = 95437440. Its totient is φ = 79983552.

The previous prime is 87634639. The next prime is 87634667. The reversal of 87634651 is 15643678.

It is a happy number.

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 87634651 - 2⁵ = 87634619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87634601) 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, 36715 + ... + 39028.

It is an arithmetic number, because the mean of its divisors is an integer number (11929680).

Almost surely, 2^87634651 is an apocalyptic number.

87634651 is a deficient number, since it is larger than the sum of its proper divisors (7802789).

87634651 is a wasteful number, since it uses less digits than its factorization.

87634651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75845.

The product of its digits is 120960, while the sum is 40.

The square root of 87634651 is about 9361.3380987976. The cubic root of 87634651 is about 444.1796120837.

The spelling of 87634651 in words is "eighty-seven million, six hundred thirty-four thousand, six hundred fifty-one".