87150090 has 32 divisors (see below), whose sum is σ = 212593536. Its totient is φ = 22858560.

The previous prime is 87150071. The next prime is 87150097. The reversal of 87150090 is 9005178.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (87150097) 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, 21982 + ... + 25641.

It is an arithmetic number, because the mean of its divisors is an integer number (6643548).

Almost surely, 2^87150090 is an apocalyptic number.

87150090 is an abundant number, since it is smaller than the sum of its proper divisors (125443446).

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

87150090 is a wasteful number, since it uses less digits than its factorization.

87150090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47694.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 87150090 is about 9335.4212545551. The cubic root of 87150090 is about 443.3594264829.

The spelling of 87150090 in words is "eighty-seven million, one hundred fifty thousand, ninety".