23997807 has 6 divisors (see below), whose sum is σ = 34663512. Its totient is φ = 15998532.

The previous prime is 23997803. The next prime is 23997811. The reversal of 23997807 is 70879932.

It is an interprime number because it is at equal distance from previous prime (23997803) and next prime (23997811).

It is not a de Polignac number, because 23997807 - 2² = 23997803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23997803) 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, 1333203 + ... + 1333220.

It is an arithmetic number, because the mean of its divisors is an integer number (5777252).

Almost surely, 2^23997807 is an apocalyptic number.

23997807 is a deficient number, since it is larger than the sum of its proper divisors (10665705).

23997807 is a wasteful number, since it uses less digits than its factorization.

23997807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2666429 (or 2666426 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 23997807 is about 4898.7556583279. The cubic root of 23997807 is about 288.4411280902.

The spelling of 23997807 in words is "twenty-three million, nine hundred ninety-seven thousand, eight hundred seven".