87918751 has 8 divisors (see below), whose sum is σ = 90011600. Its totient is φ = 85847040.

The previous prime is 87918731. The next prime is 87918769. The reversal of 87918751 is 15781978.

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 87918751 - 2⁹ = 87918239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87918731) 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, 3295 + ... + 13663.

It is an arithmetic number, because the mean of its divisors is an integer number (11251450).

Almost surely, 2^87918751 is an apocalyptic number.

87918751 is a deficient number, since it is larger than the sum of its proper divisors (2092849).

87918751 is a wasteful number, since it uses less digits than its factorization.

87918751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10569.

The product of its digits is 141120, while the sum is 46.

The square root of 87918751 is about 9376.4999333440. The cubic root of 87918751 is about 444.6590849334.

The spelling of 87918751 in words is "eighty-seven million, nine hundred eighteen thousand, seven hundred fifty-one".