23906745 has 20 divisors (see below), whose sum is σ = 42855780. Its totient is φ = 12750048.

The previous prime is 23906737. The next prime is 23906783. The reversal of 23906745 is 54760932.

It can be written as a sum of positive squares in 2 ways, for example, as 5861241 + 18045504 = 2421^2 + 4248^2 .

It is not a de Polignac number, because 23906745 - 2³ = 23906737 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29110 + ... + 29919.

It is an arithmetic number, because the mean of its divisors is an integer number (2142789).

Almost surely, 2^23906745 is an apocalyptic number.

It is an amenable number.

23906745 is a deficient number, since it is larger than the sum of its proper divisors (18949035).

23906745 is an equidigital number, since it uses as much as digits as its factorization.

23906745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59046 (or 59037 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 23906745 is about 4889.4524233292. The cubic root of 23906745 is about 288.0758263884.

The spelling of 23906745 in words is "twenty-three million, nine hundred six thousand, seven hundred forty-five".