78414967 has 2 divisors, whose sum is σ = 78414968. Its totient is φ = 78414966.

The previous prime is 78414949. The next prime is 78414971. The reversal of 78414967 is 76941487.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78414967 - 2⁷ = 78414839 is a prime.

It is a super-2 number, since 2×78414967² = 12297814099222178, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78414907) 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, 39207483 + 39207484.

It is an arithmetic number, because the mean of its divisors is an integer number (39207484).

Almost surely, 2^78414967 is an apocalyptic number.

78414967 is a deficient number, since it is larger than the sum of its proper divisors (1).

78414967 is an equidigital number, since it uses as much as digits as its factorization.

78414967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 46.

The square root of 78414967 is about 8855.2225833121. Note that the first 3 decimals coincide. The cubic root of 78414967 is about 428.0222260418.

It can be divided in two parts, 784 and 14967, that added together give a palindrome (15751).

The spelling of 78414967 in words is "seventy-eight million, four hundred fourteen thousand, nine hundred sixty-seven".