23909516 has 6 divisors (see below), whose sum is σ = 41841660. Its totient is φ = 11954756.

The previous prime is 23909503. The next prime is 23909521. The reversal of 23909516 is 61590932.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2988686 + ... + 2988693.

It is an arithmetic number, because the mean of its divisors is an integer number (6973610).

Almost surely, 2^23909516 is an apocalyptic number.

It is an amenable number.

23909516 is a deficient number, since it is larger than the sum of its proper divisors (17932144).

23909516 is a wasteful number, since it uses less digits than its factorization.

23909516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5977383 (or 5977381 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 23909516 is about 4889.7357801828. The cubic root of 23909516 is about 288.0869561243.

The spelling of 23909516 in words is "twenty-three million, nine hundred nine thousand, five hundred sixteen".