23231479 has 2 divisors, whose sum is σ = 23231480. Its totient is φ = 23231478.

The previous prime is 23231477. The next prime is 23231491. The reversal of 23231479 is 97413232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23231479 - 2¹ = 23231477 is a prime.

Together with 23231477, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23231479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23231473) 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 as a sum of consecutive naturals, namely, 11615739 + 11615740.

It is an arithmetic number, because the mean of its divisors is an integer number (11615740).

Almost surely, 2^23231479 is an apocalyptic number.

23231479 is a deficient number, since it is larger than the sum of its proper divisors (1).

23231479 is an equidigital number, since it uses as much as digits as its factorization.

23231479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 31.

The square root of 23231479 is about 4819.9044596340. The cubic root of 23231479 is about 285.3375665672.

The spelling of 23231479 in words is "twenty-three million, two hundred thirty-one thousand, four hundred seventy-nine".