23878237 has 4 divisors (see below), whose sum is σ = 23991616. Its totient is φ = 23764860.

The previous prime is 23878229. The next prime is 23878243. The reversal of 23878237 is 73287832.

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 23878237 - 2³ = 23878229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23878237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23878207) 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, 56373 + ... + 56794.

It is an arithmetic number, because the mean of its divisors is an integer number (5997904).

Almost surely, 2^23878237 is an apocalyptic number.

It is an amenable number.

23878237 is a deficient number, since it is larger than the sum of its proper divisors (113379).

23878237 is a wasteful number, since it uses less digits than its factorization.

23878237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113378.

The product of its digits is 112896, while the sum is 40.

The square root of 23878237 is about 4886.5362988522. The cubic root of 23878237 is about 287.9612738888.

The spelling of 23878237 in words is "twenty-three million, eight hundred seventy-eight thousand, two hundred thirty-seven".