23449779 has 6 divisors (see below), whose sum is σ = 33871916. Its totient is φ = 15633180.

The previous prime is 23449771. The next prime is 23449787. The reversal of 23449779 is 97794432.

It is an interprime number because it is at equal distance from previous prime (23449771) and next prime (23449787).

It is not a de Polignac number, because 23449779 - 2³ = 23449771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23449771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1302757 + ... + 1302774.

Almost surely, 2^23449779 is an apocalyptic number.

23449779 is a deficient number, since it is larger than the sum of its proper divisors (10422137).

23449779 is a wasteful number, since it uses less digits than its factorization.

23449779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605537 (or 2605534 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 23449779 is about 4842.4971863699. The cubic root of 23449779 is about 286.2285286108.

The spelling of 23449779 in words is "twenty-three million, four hundred forty-nine thousand, seven hundred seventy-nine".