87133898 has 16 divisors (see below), whose sum is σ = 134156736. Its totient is φ = 42430080.

The previous prime is 87133877. The next prime is 87133933. The reversal of 87133898 is 89833178.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8090 + ... + 15482.

It is an arithmetic number, because the mean of its divisors is an integer number (8384796).

Almost surely, 2^87133898 is an apocalyptic number.

87133898 is a deficient number, since it is larger than the sum of its proper divisors (47022838).

87133898 is a wasteful number, since it uses less digits than its factorization.

87133898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7549.

The product of its digits is 290304, while the sum is 47.

The square root of 87133898 is about 9334.5539797036. The cubic root of 87133898 is about 443.3319668804.

The spelling of 87133898 in words is "eighty-seven million, one hundred thirty-three thousand, eight hundred ninety-eight".