87660751 has 8 divisors (see below), whose sum is σ = 91619424. Its totient is φ = 83714400.

The previous prime is 87660731. The next prime is 87660763. The reversal of 87660751 is 15706678.

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 87660751 - 2⁵ = 87660719 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 (87660731) 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, 13405 + ... + 18841.

It is an arithmetic number, because the mean of its divisors is an integer number (11452428).

Almost surely, 2^87660751 is an apocalyptic number.

87660751 is a deficient number, since it is larger than the sum of its proper divisors (3958673).

87660751 is a wasteful number, since it uses less digits than its factorization.

87660751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6161.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 87660751 is about 9362.7320264974. The cubic root of 87660751 is about 444.2237039927.

The spelling of 87660751 in words is "eighty-seven million, six hundred sixty thousand, seven hundred fifty-one".