34647979 has 2 divisors, whose sum is σ = 34647980. Its totient is φ = 34647978.

The previous prime is 34647971. The next prime is 34648027. The reversal of 34647979 is 97974643.

34647979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34647979 - 2³ = 34647971 is a prime.

It is not a weakly prime, because it can be changed into another prime (34647971) 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, 17323989 + 17323990.

It is an arithmetic number, because the mean of its divisors is an integer number (17323990).

Almost surely, 2^34647979 is an apocalyptic number.

34647979 is a deficient number, since it is larger than the sum of its proper divisors (1).

34647979 is an equidigital number, since it uses as much as digits as its factorization.

34647979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 49.

The square root of 34647979 is about 5886.2533924390. The cubic root of 34647979 is about 326.0062822632.

The spelling of 34647979 in words is "thirty-four million, six hundred forty-seven thousand, nine hundred seventy-nine".