23731641 has 12 divisors (see below), whose sum is σ = 34472880. Its totient is φ = 15731640.

The previous prime is 23731639. The next prime is 23731681. The reversal of 23731641 is 14613732.

It is not a de Polignac number, because 23731641 - 2¹ = 23731639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23731681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5755 + ... + 8976.

It is an arithmetic number, because the mean of its divisors is an integer number (2872740).

Almost surely, 2^23731641 is an apocalyptic number.

It is an amenable number.

23731641 is a deficient number, since it is larger than the sum of its proper divisors (10741239).

23731641 is a wasteful number, since it uses less digits than its factorization.

23731641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14916 (or 14913 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 23731641 is about 4871.5132145977. The cubic root of 23731641 is about 287.3707688885.

It can be divided in two parts, 237 and 31641, that added together give a triangular number (31878 = T₂₅₂).

The spelling of 23731641 in words is "twenty-three million, seven hundred thirty-one thousand, six hundred forty-one".