23670965 has 4 divisors (see below), whose sum is σ = 28405164. Its totient is φ = 18936768.

The previous prime is 23670961. The next prime is 23670971. The reversal of 23670965 is 56907632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5769604 + 17901361 = 2402^2 + 4231^2 .

It is a cyclic number.

It is not a de Polignac number, because 23670965 - 2² = 23670961 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23670961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2367092 + ... + 2367101.

It is an arithmetic number, because the mean of its divisors is an integer number (7101291).

Almost surely, 2^23670965 is an apocalyptic number.

It is an amenable number.

23670965 is a deficient number, since it is larger than the sum of its proper divisors (4734199).

23670965 is an equidigital number, since it uses as much as digits as its factorization.

23670965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4734198.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 23670965 is about 4865.2815951392. The cubic root of 23670965 is about 287.1256476147.

The spelling of 23670965 in words is "twenty-three million, six hundred seventy thousand, nine hundred sixty-five".