3678979 has 2 divisors, whose sum is σ = 3678980. Its totient is φ = 3678978.

The previous prime is 3678977. The next prime is 3679003. The reversal of 3678979 is 9798763.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3678979 - 2¹ = 3678977 is a prime.

Together with 3678977, it forms a pair of twin primes.

3678979 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3678973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1839489 + 1839490.

It is an arithmetic number, because the mean of its divisors is an integer number (1839490).

Almost surely, 2^3678979 is an apocalyptic number.

3678979 is a deficient number, since it is larger than the sum of its proper divisors (1).

3678979 is an equidigital number, since it uses as much as digits as its factorization.

3678979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 49.

The square root of 3678979 is about 1918.0664743434. The cubic root of 3678979 is about 154.3745730946.

The spelling of 3678979 in words is "three million, six hundred seventy-eight thousand, nine hundred seventy-nine".