88991022 has 64 divisors (see below), whose sum is σ = 202798080. Its totient is φ = 25860096.

The previous prime is 88990969. The next prime is 88991083. The reversal of 88991022 is 22019988.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90598 + ... + 91574.

It is an arithmetic number, because the mean of its divisors is an integer number (3168720).

Almost surely, 2^88991022 is an apocalyptic number.

88991022 is an abundant number, since it is smaller than the sum of its proper divisors (113807058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88991022 is a wasteful number, since it uses less digits than its factorization.

88991022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 88991022 is about 9433.5052870076. The cubic root of 88991022 is about 446.4594961392.

The spelling of 88991022 in words is "eighty-eight million, nine hundred ninety-one thousand, twenty-two".