23405601 has 4 divisors (see below), whose sum is σ = 31207472. Its totient is φ = 15603732.

The previous prime is 23405593. The next prime is 23405609. The reversal of 23405601 is 10650432.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (23405593) and next prime (23405609).

It is not a de Polignac number, because 23405601 - 2³ = 23405593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23405609) 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, 3900931 + ... + 3900936.

It is an arithmetic number, because the mean of its divisors is an integer number (7801868).

Almost surely, 2^23405601 is an apocalyptic number.

It is an amenable number.

23405601 is a deficient number, since it is larger than the sum of its proper divisors (7801871).

23405601 is an equidigital number, since it uses as much as digits as its factorization.

23405601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7801870.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 23405601 is about 4837.9335464638. The cubic root of 23405601 is about 286.0486697292.

The spelling of 23405601 in words is "twenty-three million, four hundred five thousand, six hundred one".