23664997 has 8 divisors (see below), whose sum is σ = 24485120. Its totient is φ = 22848480.

The previous prime is 23664973. The next prime is 23665021. The reversal of 23664997 is 79946632.

It is an interprime number because it is at equal distance from previous prime (23664973) and next prime (23665021).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23664997 - 2¹⁹ = 23140709 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 (23664947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22393 + ... + 23425.

It is an arithmetic number, because the mean of its divisors is an integer number (3060640).

Almost surely, 2^23664997 is an apocalyptic number.

It is an amenable number.

23664997 is a deficient number, since it is larger than the sum of its proper divisors (820123).

23664997 is a wasteful number, since it uses less digits than its factorization.

23664997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803.

The product of its digits is 489888, while the sum is 46.

The square root of 23664997 is about 4864.6682312363. The cubic root of 23664997 is about 287.1015152386.

The spelling of 23664997 in words is "twenty-three million, six hundred sixty-four thousand, nine hundred ninety-seven".