34309979 has 4 divisors (see below), whose sum is σ = 37429080. Its totient is φ = 31190880.

The previous prime is 34309973. The next prime is 34309981. The reversal of 34309979 is 97990343.

It is a happy number.

34309979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34309979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34309973) 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 in 3 ways as a sum of consecutive naturals, for example, 1559534 + ... + 1559555.

It is an arithmetic number, because the mean of its divisors is an integer number (9357270).

Almost surely, 2^34309979 is an apocalyptic number.

34309979 is a deficient number, since it is larger than the sum of its proper divisors (3119101).

34309979 is a wasteful number, since it uses less digits than its factorization.

34309979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119100.

The product of its (nonzero) digits is 183708, while the sum is 44.

The square root of 34309979 is about 5857.4720656611. The cubic root of 34309979 is about 324.9427244235.

It can be divided in two parts, 34 and 309979, that added together give a palindrome (310013).

The spelling of 34309979 in words is "thirty-four million, three hundred nine thousand, nine hundred seventy-nine".