23513743 has 4 divisors (see below), whose sum is σ = 25651368. Its totient is φ = 21376120.

The previous prime is 23513729. The next prime is 23513747. The reversal of 23513743 is 34731532.

23513743 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23513743 - 2¹³ = 23505551 is a prime.

It is a super-2 number, since 2×23513743² = 1105792219740098, 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 (23513747) 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, 1068796 + ... + 1068817.

It is an arithmetic number, because the mean of its divisors is an integer number (6412842).

Almost surely, 2^23513743 is an apocalyptic number.

23513743 is a deficient number, since it is larger than the sum of its proper divisors (2137625).

23513743 is a wasteful number, since it uses less digits than its factorization.

23513743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137624.

The product of its digits is 7560, while the sum is 28.

The square root of 23513743 is about 4849.0971324567. The cubic root of 23513743 is about 286.4885410148.

The spelling of 23513743 in words is "twenty-three million, five hundred thirteen thousand, seven hundred forty-three".