34781979 has 8 divisors (see below), whose sum is σ = 46584832. Its totient is φ = 23083560.

The previous prime is 34781963. The next prime is 34781987. The reversal of 34781979 is 97918743.

34781979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 34781979 - 2⁴ = 34781963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34781479) 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 7 ways as a sum of consecutive naturals, for example, 25327 + ... + 26664.

It is an arithmetic number, because the mean of its divisors is an integer number (5823104).

Almost surely, 2^34781979 is an apocalyptic number.

34781979 is a deficient number, since it is larger than the sum of its proper divisors (11802853).

34781979 is a wasteful number, since it uses less digits than its factorization.

34781979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52217.

The product of its digits is 381024, while the sum is 48.

The square root of 34781979 is about 5897.6248609080. The cubic root of 34781979 is about 326.4260147380.

The spelling of 34781979 in words is "thirty-four million, seven hundred eighty-one thousand, nine hundred seventy-nine".