87400170 has 96 divisors (see below), whose sum is σ = 267007104. Its totient is φ = 19555200.

The previous prime is 87400169. The next prime is 87400177. The reversal of 87400170 is 7100478.

It is not an unprimeable number, because it can be changed into a prime (87400177) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9475 + ... + 16265.

It is an arithmetic number, because the mean of its divisors is an integer number (2781324).

Almost surely, 2^87400170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87400170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133503552).

87400170 is an abundant number, since it is smaller than the sum of its proper divisors (179606934).

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

87400170 is a wasteful number, since it uses less digits than its factorization.

87400170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6828 (or 6825 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 87400170 is about 9348.8058060910. The cubic root of 87400170 is about 443.7830995610.

The spelling of 87400170 in words is "eighty-seven million, four hundred thousand, one hundred seventy".