859008394 has 4 divisors (see below), whose sum is σ = 1288512594. Its totient is φ = 429504196.

The previous prime is 859008389. The next prime is 859008401. The reversal of 859008394 is 493800958.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 762477769 + 96530625 = 27613^2 + 9825^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214752097 + ... + 214752100.

Almost surely, 2^859008394 is an apocalyptic number.

859008394 is a deficient number, since it is larger than the sum of its proper divisors (429504200).

859008394 is a wasteful number, since it uses less digits than its factorization.

859008394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429504199.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 859008394 is about 29308.8449789479. The cubic root of 859008394 is about 950.6029022460.

The spelling of 859008394 in words is "eight hundred fifty-nine million, eight thousand, three hundred ninety-four".