859478274 has 24 divisors (see below), whose sum is σ = 1862786172. Its totient is φ = 286403040.

The previous prime is 859478261. The next prime is 859478309. The reversal of 859478274 is 472874958.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 856440225 + 3038049 = 29265^2 + 1743^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 859478274.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 78012 + ... + 88344.

Almost surely, 2^859478274 is an apocalyptic number.

859478274 is an abundant number, since it is smaller than the sum of its proper divisors (1003307898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

859478274 is a wasteful number, since it uses less digits than its factorization.

859478274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14962 (or 14959 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 859478274 is about 29316.8598932423. The cubic root of 859478274 is about 950.7761981364.

It can be divided in two parts, 8594 and 78274, that added together give a palindrome (86868).

The spelling of 859478274 in words is "eight hundred fifty-nine million, four hundred seventy-eight thousand, two hundred seventy-four".