23971605 has 16 divisors (see below), whose sum is σ = 43833984. Its totient is φ = 10958400.

The previous prime is 23971583. The next prime is 23971613. The reversal of 23971605 is 50617932.

It is not a de Polignac number, because 23971605 - 2⁵ = 23971573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114046 + ... + 114255.

It is an arithmetic number, because the mean of its divisors is an integer number (2739624).

Almost surely, 2^23971605 is an apocalyptic number.

It is an amenable number.

23971605 is a deficient number, since it is larger than the sum of its proper divisors (19862379).

23971605 is a wasteful number, since it uses less digits than its factorization.

23971605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228316.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 23971605 is about 4896.0805753174. The cubic root of 23971605 is about 288.3361117340.

The spelling of 23971605 in words is "twenty-three million, nine hundred seventy-one thousand, six hundred five".