23897705 has 16 divisors (see below), whose sum is σ = 31175760. Its totient is φ = 17480448.

The previous prime is 23897693. The next prime is 23897719. The reversal of 23897705 is 50779832.

It can be written as a sum of positive squares in 8 ways, for example, as 732736 + 23164969 = 856^2 + 4813^2 .

It is a cyclic number.

It is not a de Polignac number, because 23897705 - 2⁴ = 23897689 is a prime.

It is a super-2 number, since 2×23897705² = 1142200608534050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5399 + ... + 8771.

It is an arithmetic number, because the mean of its divisors is an integer number (1948485).

Almost surely, 2^23897705 is an apocalyptic number.

It is an amenable number.

23897705 is a deficient number, since it is larger than the sum of its proper divisors (7278055).

23897705 is a wasteful number, since it uses less digits than its factorization.

23897705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 23897705 is about 4888.5278970259. The cubic root of 23897705 is about 288.0395112008.

The spelling of 23897705 in words is "twenty-three million, eight hundred ninety-seven thousand, seven hundred five".