23778467 has 2 divisors, whose sum is σ = 23778468. Its totient is φ = 23778466.

The previous prime is 23778431. The next prime is 23778479. The reversal of 23778467 is 76487732.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23778467 - 2⁸ = 23778211 is a prime.

It is not a weakly prime, because it can be changed into another prime (23778407) 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 as a sum of consecutive naturals, namely, 11889233 + 11889234.

It is an arithmetic number, because the mean of its divisors is an integer number (11889234).

Almost surely, 2^23778467 is an apocalyptic number.

23778467 is a deficient number, since it is larger than the sum of its proper divisors (1).

23778467 is an equidigital number, since it uses as much as digits as its factorization.

23778467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 44.

The square root of 23778467 is about 4876.3169503222. The cubic root of 23778467 is about 287.5596529023.

The spelling of 23778467 in words is "twenty-three million, seven hundred seventy-eight thousand, four hundred sixty-seven".