847262879 has 2 divisors, whose sum is σ = 847262880. Its totient is φ = 847262878.

The previous prime is 847262861. The next prime is 847262917. The reversal of 847262879 is 978262748.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 847262879 - 2⁸ = 847262623 is a prime.

It is a super-2 number, since 2×847262879² = 1435708772262737282, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 847262879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (847262849) 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, 423631439 + 423631440.

It is an arithmetic number, because the mean of its divisors is an integer number (423631440).

Almost surely, 2^847262879 is an apocalyptic number.

847262879 is a deficient number, since it is larger than the sum of its proper divisors (1).

847262879 is an equidigital number, since it uses as much as digits as its factorization.

847262879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2709504, while the sum is 53.

The square root of 847262879 is about 29107.7803860068. The cubic root of 847262879 is about 946.2503643143.

The spelling of 847262879 in words is "eight hundred forty-seven million, two hundred sixty-two thousand, eight hundred seventy-nine".