2516779 has 2 divisors, whose sum is σ = 2516780. Its totient is φ = 2516778.

The previous prime is 2516771. The next prime is 2516783. The reversal of 2516779 is 9776152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2516779 - 2³ = 2516771 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2516771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258389 + 1258390.

It is an arithmetic number, because the mean of its divisors is an integer number (1258390).

2^2516779 is an apocalyptic number.

2516779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2516779 is an equidigital number, since it uses as much as digits as its factorization.

2516779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 37.

The square root of 2516779 is about 1586.4359426085. The cubic root of 2516779 is about 136.0238388142.

The spelling of 2516779 in words is "two million, five hundred sixteen thousand, seven hundred seventy-nine".