859163798 has 4 divisors (see below), whose sum is σ = 1288745700. Its totient is φ = 429581898.

The previous prime is 859163783. The next prime is 859163801. The reversal of 859163798 is 897361958.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 897361958 = 2 ⋅448680979.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214790948 + ... + 214790951.

It is an arithmetic number, because the mean of its divisors is an integer number (322186425).

Almost surely, 2^859163798 is an apocalyptic number.

859163798 is a deficient number, since it is larger than the sum of its proper divisors (429581902).

859163798 is a wasteful number, since it uses less digits than its factorization.

859163798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429581901.

The product of its digits is 3265920, while the sum is 56.

The square root of 859163798 is about 29311.4960041278. The cubic root of 859163798 is about 950.6602236051.

The spelling of 859163798 in words is "eight hundred fifty-nine million, one hundred sixty-three thousand, seven hundred ninety-eight".