859478930 has 16 divisors (see below), whose sum is σ = 1551948120. Its totient is φ = 342705792.

The previous prime is 859478923. The next prime is 859478933. The reversal of 859478930 is 39874958.

It can be written as a sum of positive squares in 4 ways, for example, as 731540209 + 127938721 = 27047^2 + 11311^2 .

It is a super-2 number, since 2×859478930² = 1477408062227889800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (859478933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132395 + ... + 138734.

Almost surely, 2^859478930 is an apocalyptic number.

859478930 is a deficient number, since it is larger than the sum of its proper divisors (692469190).

859478930 is a wasteful number, since it uses less digits than its factorization.

859478930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271453.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 859478930 is about 29316.8710813415. The cubic root of 859478930 is about 950.7764400308.

The spelling of 859478930 in words is "eight hundred fifty-nine million, four hundred seventy-eight thousand, nine hundred thirty".