87687270 has 96 divisors (see below), whose sum is σ = 259593984. Its totient is φ = 20328000.

The previous prime is 87687269. The next prime is 87687283. The reversal of 87687270 is 7278678.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20845 + ... + 24695.

It is an arithmetic number, because the mean of its divisors is an integer number (2704104).

Almost surely, 2^87687270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87687270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129796992).

87687270 is an abundant number, since it is smaller than the sum of its proper divisors (171906714).

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

87687270 is a wasteful number, since it uses less digits than its factorization.

87687270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3898 (or 3895 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The square root of 87687270 is about 9364.1481192899. The cubic root of 87687270 is about 444.2684947743.

The spelling of 87687270 in words is "eighty-seven million, six hundred eighty-seven thousand, two hundred seventy".