88121089 has 4 divisors (see below), whose sum is σ = 100709824. Its totient is φ = 75532356.

The previous prime is 88121083. The next prime is 88121093. The reversal of 88121089 is 98012188.

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 a cyclic number.

It is not a de Polignac number, because 88121089 - 2⁷ = 88120961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88121083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6294357 + ... + 6294370.

It is an arithmetic number, because the mean of its divisors is an integer number (25177456).

Almost surely, 2^88121089 is an apocalyptic number.

It is an amenable number.

88121089 is a deficient number, since it is larger than the sum of its proper divisors (12588735).

88121089 is a wasteful number, since it uses less digits than its factorization.

88121089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12588734.

The product of its (nonzero) digits is 9216, while the sum is 37.

The square root of 88121089 is about 9387.2833663419. The cubic root of 88121089 is about 444.9999394016. Note that the first 4 decimals are identical.

The spelling of 88121089 in words is "eighty-eight million, one hundred twenty-one thousand, eighty-nine".