23319049 has 4 divisors (see below), whose sum is σ = 25112836. Its totient is φ = 21525264.

The previous prime is 23319041. The next prime is 23319059. The reversal of 23319049 is 94091332.

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 6451600 + 16867449 = 2540^2 + 4107^2 .

It is a cyclic number.

It is not a de Polignac number, because 23319049 - 2³ = 23319041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23319049.

It is not an unprimeable number, because it can be changed into a prime (23319041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896874 + ... + 896899.

It is an arithmetic number, because the mean of its divisors is an integer number (6278209).

Almost surely, 2^23319049 is an apocalyptic number.

It is an amenable number.

23319049 is a deficient number, since it is larger than the sum of its proper divisors (1793787).

23319049 is a wasteful number, since it uses less digits than its factorization.

23319049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793786.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 23319049 is about 4828.9801200668. The cubic root of 23319049 is about 285.6956393426.

The spelling of 23319049 in words is "twenty-three million, three hundred nineteen thousand, forty-nine".