87643158 has 32 divisors (see below), whose sum is σ = 184433760. Its totient is φ = 27728640.

The previous prime is 87643151. The next prime is 87643163. The reversal of 87643158 is 85134678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87643151) 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, 4288 + ... + 13916.

It is an arithmetic number, because the mean of its divisors is an integer number (5763555).

Almost surely, 2^87643158 is an apocalyptic number.

87643158 is an abundant number, since it is smaller than the sum of its proper divisors (96790602).

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

87643158 is a wasteful number, since it uses less digits than its factorization.

87643158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9712.

The product of its digits is 161280, while the sum is 42.

The square root of 87643158 is about 9361.7924565758. The cubic root of 87643158 is about 444.1939843047.

The spelling of 87643158 in words is "eighty-seven million, six hundred forty-three thousand, one hundred fifty-eight".