88280991 has 12 divisors (see below), whose sum is σ = 128756368. Its totient is φ = 58281984.

The previous prime is 88280989. The next prime is 88281007. The reversal of 88280991 is 19908288.

It is not a de Polignac number, because 88280991 - 2¹ = 88280989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88280971) 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, 46690 + ... + 48543.

Almost surely, 2^88280991 is an apocalyptic number.

88280991 is a deficient number, since it is larger than the sum of its proper divisors (40475377).

88280991 is a wasteful number, since it uses less digits than its factorization.

88280991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95342 (or 95339 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 88280991 is about 9395.7964537340. The cubic root of 88280991 is about 445.2689381358.

The spelling of 88280991 in words is "eighty-eight million, two hundred eighty thousand, nine hundred ninety-one".