23313861 has 6 divisors (see below), whose sum is σ = 33675590. Its totient is φ = 15542568.

The previous prime is 23313841. The next prime is 23313863. The reversal of 23313861 is 16831332.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23097636 + 216225 = 4806^2 + 465^2 .

It is not a de Polignac number, because 23313861 - 2¹³ = 23305669 is a prime.

It is a super-2 number, since 2×23313861² = 1087072229454642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23313863) 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, 1295206 + ... + 1295223.

Almost surely, 2^23313861 is an apocalyptic number.

It is an amenable number.

23313861 is a deficient number, since it is larger than the sum of its proper divisors (10361729).

23313861 is a wasteful number, since it uses less digits than its factorization.

23313861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590435 (or 2590432 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 23313861 is about 4828.4429167176. The cubic root of 23313861 is about 285.6744506725.

The spelling of 23313861 in words is "twenty-three million, three hundred thirteen thousand, eight hundred sixty-one".