88821369 has 36 divisors (see below), whose sum is σ = 160734756. Its totient is φ = 46847808.

The previous prime is 88821367. The next prime is 88821389. The reversal of 88821369 is 96312888.

It can be written as a sum of positive squares in 2 ways, for example, as 8037225 + 80784144 = 2835^2 + 8988^2 .

It is not a de Polignac number, because 88821369 - 2¹ = 88821367 is a prime.

It is a super-2 number, since 2×88821369² = 15778471182068322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (88821361) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2014 + ... + 13479.

Almost surely, 2^88821369 is an apocalyptic number.

It is an amenable number.

88821369 is a deficient number, since it is larger than the sum of its proper divisors (71913387).

88821369 is a wasteful number, since it uses less digits than its factorization.

88821369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15526 (or 15516 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 88821369 is about 9424.5089527253. The cubic root of 88821369 is about 446.1756046684.

The spelling of 88821369 in words is "eighty-eight million, eight hundred twenty-one thousand, three hundred sixty-nine".