23105407 has 4 divisors (see below), whose sum is σ = 24882760. Its totient is φ = 21328056.

The previous prime is 23105399. The next prime is 23105417. The reversal of 23105407 is 70450132.

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

It is a cyclic number.

It is not a de Polignac number, because 23105407 - 2³ = 23105399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23105417) 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, 888657 + ... + 888682.

It is an arithmetic number, because the mean of its divisors is an integer number (6220690).

Almost surely, 2^23105407 is an apocalyptic number.

23105407 is a deficient number, since it is larger than the sum of its proper divisors (1777353).

23105407 is a wasteful number, since it uses less digits than its factorization.

23105407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777352.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 23105407 is about 4806.8084005918. The cubic root of 23105407 is about 284.8204758389.

Adding to 23105407 its reverse (70450132), we get a palindrome (93555539).

The spelling of 23105407 in words is "twenty-three million, one hundred five thousand, four hundred seven".