23019669 has 6 divisors (see below), whose sum is σ = 33250646. Its totient is φ = 15346440.

The previous prime is 23019641. The next prime is 23019671. The reversal of 23019669 is 96691032.

It can be written as a sum of positive squares in only one way, i.e., 17114769 + 5904900 = 4137^2 + 2430^2 .

It is not a de Polignac number, because 23019669 - 2⁵ = 23019637 is a prime.

It is a super-2 number, since 2×23019669² = 1059810321739122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23019169) 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, 1278862 + ... + 1278879.

Almost surely, 2^23019669 is an apocalyptic number.

It is an amenable number.

23019669 is a deficient number, since it is larger than the sum of its proper divisors (10230977).

23019669 is a wasteful number, since it uses less digits than its factorization.

23019669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557747 (or 2557744 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 23019669 is about 4797.8817200927. The cubic root of 23019669 is about 284.4677415825.

The spelling of 23019669 in words is "twenty-three million, nineteen thousand, six hundred sixty-nine".