23047479 has 48 divisors (see below), whose sum is σ = 41513472. Its totient is φ = 11997504.

The previous prime is 23047471. The next prime is 23047483. The reversal of 23047479 is 97474032.

It is not a de Polignac number, because 23047479 - 2³ = 23047471 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23047471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87502 + ... + 87764.

It is an arithmetic number, because the mean of its divisors is an integer number (864864).

Almost surely, 2^23047479 is an apocalyptic number.

23047479 is a deficient number, since it is larger than the sum of its proper divisors (18465993).

23047479 is a wasteful number, since it uses less digits than its factorization.

23047479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 23047479 is about 4800.7789992875. The cubic root of 23047479 is about 284.5822503860.

The spelling of 23047479 in words is "twenty-three million, forty-seven thousand, four hundred seventy-nine".