23389779 has 48 divisors (see below), whose sum is σ = 39402240. Its totient is φ = 12052800.

The previous prime is 23389777. The next prime is 23389799. The reversal of 23389779 is 97798332.

It is not a de Polignac number, because 23389779 - 2¹ = 23389777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23389777) 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 47 ways as a sum of consecutive naturals, for example, 383409 + ... + 383469.

It is an arithmetic number, because the mean of its divisors is an integer number (820880).

Almost surely, 2^23389779 is an apocalyptic number.

23389779 is a deficient number, since it is larger than the sum of its proper divisors (16012461).

23389779 is a wasteful number, since it uses less digits than its factorization.

23389779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 121 counting only the distinct ones).

The product of its digits is 571536, while the sum is 48.

The square root of 23389779 is about 4836.2980677373. The cubic root of 23389779 is about 285.9841996585.

The spelling of 23389779 in words is "twenty-three million, three hundred eighty-nine thousand, seven hundred seventy-nine".