88187889 has 4 divisors (see below), whose sum is σ = 117583856. Its totient is φ = 58791924.

The previous prime is 88187863. The next prime is 88187923. The reversal of 88187889 is 98878188.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 88187889 - 2⁹ = 88187377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88187809) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14697979 + ... + 14697984.

It is an arithmetic number, because the mean of its divisors is an integer number (29395964).

Almost surely, 2^88187889 is an apocalyptic number.

It is an amenable number.

88187889 is a deficient number, since it is larger than the sum of its proper divisors (29395967).

88187889 is a wasteful number, since it uses less digits than its factorization.

88187889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29395966.

The product of its digits is 2064384, while the sum is 57.

The square root of 88187889 is about 9390.8406971900. The cubic root of 88187889 is about 445.1123547466.

The spelling of 88187889 in words is "eighty-eight million, one hundred eighty-seven thousand, eight hundred eighty-nine".