2977979 has 2 divisors, whose sum is σ = 2977980. Its totient is φ = 2977978.

The previous prime is 2977963. The next prime is 2977991. The reversal of 2977979 is 9797792.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2977979 - 2⁴ = 2977963 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2977939) 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 as a sum of consecutive naturals, namely, 1488989 + 1488990.

It is an arithmetic number, because the mean of its divisors is an integer number (1488990).

2^2977979 is an apocalyptic number.

2977979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2977979 is an equidigital number, since it uses as much as digits as its factorization.

2977979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 500094, while the sum is 50.

The square root of 2977979 is about 1725.6821839493. The cubic root of 2977979 is about 143.8712036378.

The spelling of 2977979 in words is "two million, nine hundred seventy-seven thousand, nine hundred seventy-nine".