6872779 has 2 divisors, whose sum is σ = 6872780. Its totient is φ = 6872778.

The previous prime is 6872759. The next prime is 6872783. The reversal of 6872779 is 9772786.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6872779 - 2⁷ = 6872651 is a prime.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 6872779 parts by 3707 straight cuts.

6872779 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6872759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3436389 + 3436390.

It is an arithmetic number, because the mean of its divisors is an integer number (3436390).

Almost surely, 2^6872779 is an apocalyptic number.

6872779 is a deficient number, since it is larger than the sum of its proper divisors (1).

6872779 is an equidigital number, since it uses as much as digits as its factorization.

6872779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 46.

The square root of 6872779 is about 2621.5985581320. The cubic root of 6872779 is about 190.1271448147.

The spelling of 6872779 in words is "six million, eight hundred seventy-two thousand, seven hundred seventy-nine".