78674059 has 2 divisors, whose sum is σ = 78674060. Its totient is φ = 78674058.

The previous prime is 78674033. The next prime is 78674077. The reversal of 78674059 is 95047687.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78674059 - 2⁵ = 78674027 is a prime.

It is not a weakly prime, because it can be changed into another prime (78674159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39337029 + 39337030.

It is an arithmetic number, because the mean of its divisors is an integer number (39337030).

Almost surely, 2^78674059 is an apocalyptic number.

78674059 is a deficient number, since it is larger than the sum of its proper divisors (1).

78674059 is an equidigital number, since it uses as much as digits as its factorization.

78674059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 78674059 is about 8869.8398519928. The cubic root of 78674059 is about 428.4931192211.

The spelling of 78674059 in words is "seventy-eight million, six hundred seventy-four thousand, fifty-nine".