87604161 has 16 divisors (see below), whose sum is σ = 118857024. Its totient is φ = 57383424.

The previous prime is 87604159. The next prime is 87604163. The reversal of 87604161 is 16140678.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87604159) and next prime (87604163).

It is not a de Polignac number, because 87604161 - 2¹ = 87604159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87604163) 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, 73210 + ... + 74396.

It is an arithmetic number, because the mean of its divisors is an integer number (7428564).

Almost surely, 2^87604161 is an apocalyptic number.

It is an amenable number.

87604161 is a deficient number, since it is larger than the sum of its proper divisors (31252863).

87604161 is a wasteful number, since it uses less digits than its factorization.

87604161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 87604161 is about 9359.7094506186. The cubic root of 87604161 is about 444.1280928610.

It can be divided in two parts, 8760 and 4161, that added together give a palindrome (12921).

The spelling of 87604161 in words is "eighty-seven million, six hundred four thousand, one hundred sixty-one".