23199864 has 16 divisors (see below), whose sum is σ = 57999720. Its totient is φ = 7733280.

The previous prime is 23199863. The next prime is 23199871. The reversal of 23199864 is 46899132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23199863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483307 + ... + 483354.

Almost surely, 2^23199864 is an apocalyptic number.

23199864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23199864 is an abundant number, since it is smaller than the sum of its proper divisors (34799856).

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

23199864 is a wasteful number, since it uses less digits than its factorization.

23199864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966670 (or 966666 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 23199864 is about 4816.6237137647. The cubic root of 23199864 is about 285.2080721232.

The spelling of 23199864 in words is "twenty-three million, one hundred ninety-nine thousand, eight hundred sixty-four".