87942751 has 16 divisors (see below), whose sum is σ = 100777824. Its totient is φ = 76022784.

The previous prime is 87942749. The next prime is 87942763. The reversal of 87942751 is 15724978.

It is a cyclic number.

It is not a de Polignac number, because 87942751 - 2¹ = 87942749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87942698 and 87942707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87940751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49291 + ... + 51043.

It is an arithmetic number, because the mean of its divisors is an integer number (6298614).

Almost surely, 2^87942751 is an apocalyptic number.

87942751 is a deficient number, since it is larger than the sum of its proper divisors (12835073).

87942751 is a wasteful number, since it uses less digits than its factorization.

87942751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010.

The product of its digits is 141120, while the sum is 43.

The square root of 87942751 is about 9377.7796412584. The cubic root of 87942751 is about 444.6995421624.

The spelling of 87942751 in words is "eighty-seven million, nine hundred forty-two thousand, seven hundred fifty-one".