87686051 has 8 divisors (see below), whose sum is σ = 96881184. Its totient is φ = 78939520.

The previous prime is 87686047. The next prime is 87686059. The reversal of 87686051 is 15068678.

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 87686051 - 2² = 87686047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87686059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111740 + ... + 112521.

It is an arithmetic number, because the mean of its divisors is an integer number (12110148).

Almost surely, 2^87686051 is an apocalyptic number.

87686051 is a deficient number, since it is larger than the sum of its proper divisors (9195133).

87686051 is a wasteful number, since it uses less digits than its factorization.

87686051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224301.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 87686051 is about 9364.0830303880. The cubic root of 87686051 is about 444.2664360726.

The spelling of 87686051 in words is "eighty-seven million, six hundred eighty-six thousand, fifty-one".