22699881 has 6 divisors (see below), whose sum is σ = 32788730. Its totient is φ = 15133248.

The previous prime is 22699871. The next prime is 22699891. The reversal of 22699881 is 18899622.

It is an interprime number because it is at equal distance from previous prime (22699871) and next prime (22699891).

It can be written as a sum of positive squares in only one way, i.e., 18352656 + 4347225 = 4284^2 + 2085^2 .

It is not a de Polignac number, because 22699881 - 2¹⁰ = 22698857 is a prime.

It is a super-2 number, since 2×22699881² = 1030569194828322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22699871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1261096 + ... + 1261113.

Almost surely, 2^22699881 is an apocalyptic number.

It is an amenable number.

22699881 is a deficient number, since it is larger than the sum of its proper divisors (10088849).

22699881 is a wasteful number, since it uses less digits than its factorization.

22699881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522215 (or 2522212 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 22699881 is about 4764.4392114917. The cubic root of 22699881 is about 283.1443240761.

The spelling of 22699881 in words is "twenty-two million, six hundred ninety-nine thousand, eight hundred eighty-one".