87604155 has 24 divisors (see below), whose sum is σ = 159840720. Its totient is φ = 44262720.

The previous prime is 87604151. The next prime is 87604159. The reversal of 87604155 is 55140678.

It is an interprime number because it is at equal distance from previous prime (87604151) and next prime (87604159).

It is not a de Polignac number, because 87604155 - 2² = 87604151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87604151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50376 + ... + 52085.

It is an arithmetic number, because the mean of its divisors is an integer number (6660030).

Almost surely, 2^87604155 is an apocalyptic number.

87604155 is a deficient number, since it is larger than the sum of its proper divisors (72236565).

87604155 is a wasteful number, since it uses less digits than its factorization.

87604155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102491 (or 102488 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 87604155 is about 9359.7091300959. The cubic root of 87604155 is about 444.1280827216.

It can be divided in two parts, 876041 and 55, that added together give a square (876096 = 936²).

The spelling of 87604155 in words is "eighty-seven million, six hundred four thousand, one hundred fifty-five".