23901705 has 24 divisors (see below), whose sum is σ = 41742792. Its totient is φ = 12651264.

The previous prime is 23901697. The next prime is 23901719. The reversal of 23901705 is 50710932.

It can be written as a sum of positive squares in 4 ways, for example, as 1320201 + 22581504 = 1149^2 + 4752^2 .

It is not a de Polignac number, because 23901705 - 2³ = 23901697 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4227 + ... + 8103.

It is an arithmetic number, because the mean of its divisors is an integer number (1739283).

Almost surely, 2^23901705 is an apocalyptic number.

It is an amenable number.

23901705 is a deficient number, since it is larger than the sum of its proper divisors (17841087).

23901705 is a wasteful number, since it uses less digits than its factorization.

23901705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4025 (or 4022 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 23901705 is about 4888.9370010259. The cubic root of 23901705 is about 288.0555809973.

It can be divided in two parts, 2390 and 1705, that added together give a triangular number (4095 = T₉₀).

The spelling of 23901705 in words is "twenty-three million, nine hundred one thousand, seven hundred five".