34729979 has 2 divisors, whose sum is σ = 34729980. Its totient is φ = 34729978.

The previous prime is 34729949. The next prime is 34729991. The reversal of 34729979 is 97992743.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 34729979 - 2²⁴ = 17952763 is a prime.

It is not a weakly prime, because it can be changed into another prime (34729909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17364989 + 17364990.

It is an arithmetic number, because the mean of its divisors is an integer number (17364990).

Almost surely, 2^34729979 is an apocalyptic number.

34729979 is a deficient number, since it is larger than the sum of its proper divisors (1).

34729979 is an equidigital number, since it uses as much as digits as its factorization.

34729979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 50.

The square root of 34729979 is about 5893.2146575532. The cubic root of 34729979 is about 326.2632616953.

The spelling of 34729979 in words is "thirty-four million, seven hundred twenty-nine thousand, nine hundred seventy-nine".