78464467 has 2 divisors, whose sum is σ = 78464468. Its totient is φ = 78464466.

The previous prime is 78464453. The next prime is 78464489. The reversal of 78464467 is 76446487.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78464467 is a prime.

It is not a weakly prime, because it can be changed into another prime (78464497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39232233 + 39232234.

It is an arithmetic number, because the mean of its divisors is an integer number (39232234).

Almost surely, 2^78464467 is an apocalyptic number.

78464467 is a deficient number, since it is larger than the sum of its proper divisors (1).

78464467 is an equidigital number, since it uses as much as digits as its factorization.

78464467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 46.

The square root of 78464467 is about 8858.0171031671. The cubic root of 78464467 is about 428.1122711118.

The spelling of 78464467 in words is "seventy-eight million, four hundred sixty-four thousand, four hundred sixty-seven".