23699997 has 6 divisors (see below), whose sum is σ = 34233342. Its totient is φ = 15799992.

The previous prime is 23699987. The next prime is 23700029. The reversal of 23699997 is 79999632.

It can be written as a sum of positive squares in only one way, i.e., 17089956 + 6610041 = 4134^2 + 2571^2 .

It is not a de Polignac number, because 23699997 - 2⁴ = 23699981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23699947) 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, 1316658 + ... + 1316675.

It is an arithmetic number, because the mean of its divisors is an integer number (5705557).

Almost surely, 2^23699997 is an apocalyptic number.

It is an amenable number.

23699997 is a deficient number, since it is larger than the sum of its proper divisors (10533345).

23699997 is a wasteful number, since it uses less digits than its factorization.

23699997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633339 (or 2633336 counting only the distinct ones).

The product of its digits is 1653372, while the sum is 54.

The square root of 23699997 is about 4868.2642697372. The cubic root of 23699997 is about 287.2429844196.

The spelling of 23699997 in words is "twenty-three million, six hundred ninety-nine thousand, nine hundred ninety-seven".