23871961 has 8 divisors (see below), whose sum is σ = 26606880. Its totient is φ = 21284928.

The previous prime is 23871937. The next prime is 23871971. The reversal of 23871961 is 16917832.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23871961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23871961.

It is not an unprimeable number, because it can be changed into a prime (23871971) 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, 36631 + ... + 37276.

It is an arithmetic number, because the mean of its divisors is an integer number (3325860).

Almost surely, 2^23871961 is an apocalyptic number.

It is an amenable number.

23871961 is a deficient number, since it is larger than the sum of its proper divisors (2734919).

23871961 is a wasteful number, since it uses less digits than its factorization.

23871961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73943.

The product of its digits is 18144, while the sum is 37.

The square root of 23871961 is about 4885.8940839932. The cubic root of 23871961 is about 287.9360430575.

The spelling of 23871961 in words is "twenty-three million, eight hundred seventy-one thousand, nine hundred sixty-one".