23049805 has 8 divisors (see below), whose sum is σ = 27687672. Its totient is φ = 18421248.

The previous prime is 23049791. The next prime is 23049811. The reversal of 23049805 is 50894032.

It can be written as a sum of positive squares in 4 ways, for example, as 10361961 + 12687844 = 3219^2 + 3562^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23049805 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5557 + ... + 8773.

It is an arithmetic number, because the mean of its divisors is an integer number (3460959).

Almost surely, 2^23049805 is an apocalyptic number.

It is an amenable number.

23049805 is a deficient number, since it is larger than the sum of its proper divisors (4637867).

23049805 is a wasteful number, since it uses less digits than its factorization.

23049805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4655.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 23049805 is about 4801.0212455268. The cubic root of 23049805 is about 284.5918236101.

The spelling of 23049805 in words is "twenty-three million, forty-nine thousand, eight hundred five".