78452267 has 2 divisors, whose sum is σ = 78452268. Its totient is φ = 78452266.

The previous prime is 78452249. The next prime is 78452317. The reversal of 78452267 is 76225487.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78452267 - 2¹⁴ = 78435883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (78452237) 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, 39226133 + 39226134.

It is an arithmetic number, because the mean of its divisors is an integer number (39226134).

Almost surely, 2^78452267 is an apocalyptic number.

78452267 is a deficient number, since it is larger than the sum of its proper divisors (1).

78452267 is an equidigital number, since it uses as much as digits as its factorization.

78452267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 41.

The square root of 78452267 is about 8857.3284346918. The cubic root of 78452267 is about 428.0900817029.

The spelling of 78452267 in words is "seventy-eight million, four hundred fifty-two thousand, two hundred sixty-seven".