88439091 has 48 divisors (see below), whose sum is σ = 138942720. Its totient is φ = 49593600.

The previous prime is 88439069. The next prime is 88439093. The reversal of 88439091 is 19093488.

It is not a de Polignac number, because 88439091 - 2⁶ = 88439027 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88439093) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1245586 + ... + 1245656.

It is an arithmetic number, because the mean of its divisors is an integer number (2894640).

Almost surely, 2^88439091 is an apocalyptic number.

88439091 is a deficient number, since it is larger than the sum of its proper divisors (50503629).

88439091 is a wasteful number, since it uses less digits than its factorization.

88439091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 88439091 is about 9404.2060270923. The cubic root of 88439091 is about 445.5345862520.

The spelling of 88439091 in words is "eighty-eight million, four hundred thirty-nine thousand, ninety-one".