23749231 has 8 divisors (see below), whose sum is σ = 26802000. Its totient is φ = 20845440.

The previous prime is 23749223. The next prime is 23749249. The reversal of 23749231 is 13294732.

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

It is not a de Polignac number, because 23749231 - 2³ = 23749223 is a prime.

It is a super-2 number, since 2×23749231² = 1128051946182722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23749193 and 23749202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23749261) 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, 36906 + ... + 37543.

It is an arithmetic number, because the mean of its divisors is an integer number (3350250).

Almost surely, 2^23749231 is an apocalyptic number.

23749231 is a deficient number, since it is larger than the sum of its proper divisors (3052769).

23749231 is a wasteful number, since it uses less digits than its factorization.

23749231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74489.

The product of its digits is 9072, while the sum is 31.

The square root of 23749231 is about 4873.3182740305. The cubic root of 23749231 is about 287.4417515265.

The spelling of 23749231 in words is "twenty-three million, seven hundred forty-nine thousand, two hundred thirty-one".