23942897 has 4 divisors (see below), whose sum is σ = 26119536. Its totient is φ = 21766260.

The previous prime is 23942887. The next prime is 23942899. The reversal of 23942897 is 79824932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23942897 - 2¹² = 23938801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23942899) 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, 1088303 + ... + 1088324.

It is an arithmetic number, because the mean of its divisors is an integer number (6529884).

Almost surely, 2^23942897 is an apocalyptic number.

It is an amenable number.

23942897 is a deficient number, since it is larger than the sum of its proper divisors (2176639).

23942897 is a wasteful number, since it uses less digits than its factorization.

23942897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176638.

The product of its digits is 217728, while the sum is 44.

The square root of 23942897 is about 4893.1479642455. The cubic root of 23942897 is about 288.2209635598.

The spelling of 23942897 in words is "twenty-three million, nine hundred forty-two thousand, eight hundred ninety-seven".