23279449 has 2 divisors, whose sum is σ = 23279450. Its totient is φ = 23279448.

The previous prime is 23279447. The next prime is 23279461. The reversal of 23279449 is 94497232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22155849 + 1123600 = 4707^2 + 1060^2 .

It is a cyclic number.

It is not a de Polignac number, because 23279449 - 2¹ = 23279447 is a prime.

Together with 23279447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23279447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11639724 + 11639725.

It is an arithmetic number, because the mean of its divisors is an integer number (11639725).

Almost surely, 2^23279449 is an apocalyptic number.

It is an amenable number.

23279449 is a deficient number, since it is larger than the sum of its proper divisors (1).

23279449 is an equidigital number, since it uses as much as digits as its factorization.

23279449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 23279449 is about 4824.8781331760. The cubic root of 23279449 is about 285.5338266043.

The spelling of 23279449 in words is "twenty-three million, two hundred seventy-nine thousand, four hundred forty-nine".