854234879 has 2 divisors, whose sum is σ = 854234880. Its totient is φ = 854234878.

The previous prime is 854234869. The next prime is 854234891. The reversal of 854234879 is 978432458.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-854234879 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 (854234809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427117439 + 427117440.

It is an arithmetic number, because the mean of its divisors is an integer number (427117440).

Almost surely, 2^854234879 is an apocalyptic number.

854234879 is a deficient number, since it is larger than the sum of its proper divisors (1).

854234879 is an equidigital number, since it uses as much as digits as its factorization.

854234879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 50.

The square root of 854234879 is about 29227.2968130821. The cubic root of 854234879 is about 948.8387950636.

The spelling of 854234879 in words is "eight hundred fifty-four million, two hundred thirty-four thousand, eight hundred seventy-nine".