87751716 has 96 divisors (see below), whose sum is σ = 236667648. Its totient is φ = 25090560.

The previous prime is 87751681. The next prime is 87751717. The reversal of 87751716 is 61715778.

It is not an unprimeable number, because it can be changed into a prime (87751717) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132426 + ... + 133086.

It is an arithmetic number, because the mean of its divisors is an integer number (2465288).

Almost surely, 2^87751716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87751716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118333824).

87751716 is an abundant number, since it is smaller than the sum of its proper divisors (148915932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87751716 is a wasteful number, since it uses less digits than its factorization.

87751716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741 (or 739 counting only the distinct ones).

The product of its digits is 82320, while the sum is 42.

The square root of 87751716 is about 9367.5885904538. The cubic root of 87751716 is about 444.3773069050.

The spelling of 87751716 in words is "eighty-seven million, seven hundred fifty-one thousand, seven hundred sixteen".