88309091 has 12 divisors (see below), whose sum is σ = 96628392. Its totient is φ = 80660736.

The previous prime is 88309087. The next prime is 88309127. The reversal of 88309091 is 19090388.

It is not a de Polignac number, because 88309091 - 2² = 88309087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88309391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13700 + ... + 19086.

It is an arithmetic number, because the mean of its divisors is an integer number (8052366).

Almost surely, 2^88309091 is an apocalyptic number.

88309091 is a deficient number, since it is larger than the sum of its proper divisors (8319301).

88309091 is a wasteful number, since it uses less digits than its factorization.

88309091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510 (or 5497 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 88309091 is about 9397.2916843099. The cubic root of 88309091 is about 445.3161764285.

The spelling of 88309091 in words is "eighty-eight million, three hundred nine thousand, ninety-one".