23937013 has 4 divisors (see below), whose sum is σ = 23946988. Its totient is φ = 23927040.

The previous prime is 23937007. The next prime is 23937029. The reversal of 23937013 is 31073932.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 675684 + 23261329 = 822^2 + 4823^2 .

It is a cyclic number.

It is not a de Polignac number, because 23937013 - 2¹⁷ = 23805941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23937073) 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, 1045 + ... + 6997.

It is an arithmetic number, because the mean of its divisors is an integer number (5986747).

Almost surely, 2^23937013 is an apocalyptic number.

It is an amenable number.

23937013 is a deficient number, since it is larger than the sum of its proper divisors (9975).

23937013 is an equidigital number, since it uses as much as digits as its factorization.

23937013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9974.

The product of its (nonzero) digits is 3402, while the sum is 28.

The square root of 23937013 is about 4892.5466783670. The cubic root of 23937013 is about 288.1973513921.

The spelling of 23937013 in words is "twenty-three million, nine hundred thirty-seven thousand, thirteen".