3456979 has 2 divisors, whose sum is σ = 3456980. Its totient is φ = 3456978.

The previous prime is 3456977. The next prime is 3457007. The reversal of 3456979 is 9796543.

It is a weak prime.

It is an emirp because it is prime and its reverse (9796543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3456979 - 2¹ = 3456977 is a prime.

Together with 3456977, it forms a pair of twin primes.

3456979 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3456977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1728489 + 1728490.

It is an arithmetic number, because the mean of its divisors is an integer number (1728490).

Almost surely, 2^3456979 is an apocalyptic number.

3456979 is a deficient number, since it is larger than the sum of its proper divisors (1).

3456979 is an equidigital number, since it uses as much as digits as its factorization.

3456979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 43.

The square root of 3456979 is about 1859.2952966111. The cubic root of 3456979 is about 151.2048008283.

The spelling of 3456979 in words is "three million, four hundred fifty-six thousand, nine hundred seventy-nine".