2977391 has 2 divisors, whose sum is σ = 2977392. Its totient is φ = 2977390.

The previous prime is 2977369. The next prime is 2977399. The reversal of 2977391 is 1937792.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2977391 - 2¹⁸ = 2715247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2977399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1488695 + 1488696.

It is an arithmetic number, because the mean of its divisors is an integer number (1488696).

2^2977391 is an apocalyptic number.

2977391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2977391 is an equidigital number, since it uses as much as digits as its factorization.

2977391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23814, while the sum is 38.

The square root of 2977391 is about 1725.5118081311. The cubic root of 2977391 is about 143.8617339230.

The spelling of 2977391 in words is "two million, nine hundred seventy-seven thousand, three hundred ninety-one".