88880091 has 4 divisors (see below), whose sum is σ = 118506792. Its totient is φ = 59253392.

The previous prime is 88880059. The next prime is 88880093. The reversal of 88880091 is 19008888.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 88880091 - 2⁵ = 88880059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88880093) 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, 14813346 + ... + 14813351.

It is an arithmetic number, because the mean of its divisors is an integer number (29626698).

Almost surely, 2^88880091 is an apocalyptic number.

88880091 is a deficient number, since it is larger than the sum of its proper divisors (29626701).

88880091 is a wasteful number, since it uses less digits than its factorization.

88880091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29626700.

The product of its (nonzero) digits is 36864, while the sum is 42.

The square root of 88880091 is about 9427.6238257580. The cubic root of 88880091 is about 446.2739089105.

The spelling of 88880091 in words is "eighty-eight million, eight hundred eighty thousand, ninety-one".