23378479 has 2 divisors, whose sum is σ = 23378480. Its totient is φ = 23378478.

The previous prime is 23378471. The next prime is 23378489. The reversal of 23378479 is 97487332.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23378479 - 2³ = 23378471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23378471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11689239 + 11689240.

It is an arithmetic number, because the mean of its divisors is an integer number (11689240).

Almost surely, 2^23378479 is an apocalyptic number.

23378479 is a deficient number, since it is larger than the sum of its proper divisors (1).

23378479 is an equidigital number, since it uses as much as digits as its factorization.

23378479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 43.

The square root of 23378479 is about 4835.1296776819. The cubic root of 23378479 is about 285.9381376298.

It can be divided in two parts, 2337 and 8479, that added together give a square (10816 = 104²).

The spelling of 23378479 in words is "twenty-three million, three hundred seventy-eight thousand, four hundred seventy-nine".