78514349 has 2 divisors, whose sum is σ = 78514350. Its totient is φ = 78514348.

The previous prime is 78514343. The next prime is 78514357. The reversal of 78514349 is 94341587.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46104100 + 32410249 = 6790^2 + 5693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78514349 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78514343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39257174 + 39257175.

It is an arithmetic number, because the mean of its divisors is an integer number (39257175).

Almost surely, 2^78514349 is an apocalyptic number.

It is an amenable number.

78514349 is a deficient number, since it is larger than the sum of its proper divisors (1).

78514349 is an equidigital number, since it uses as much as digits as its factorization.

78514349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 78514349 is about 8860.8322972506. The cubic root of 78514349 is about 428.2029727732.

The spelling of 78514349 in words is "seventy-eight million, five hundred fourteen thousand, three hundred forty-nine".