87426560 has 160 divisors (see below), whose sum is σ = 235109952. Its totient is φ = 30965760.

The previous prime is 87426551. The next prime is 87426571. The reversal of 87426560 is 6562478.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1231325 + ... + 1231395.

Almost surely, 2^87426560 is an apocalyptic number.

87426560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87426560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117554976).

87426560 is an abundant number, since it is smaller than the sum of its proper divisors (147683392).

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

87426560 is a wasteful number, since it uses less digits than its factorization.

87426560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 87426560 is about 9350.2171097788. The cubic root of 87426560 is about 443.8277610206.

The spelling of 87426560 in words is "eighty-seven million, four hundred twenty-six thousand, five hundred sixty".