859037493 has 8 divisors (see below), whose sum is σ = 1145661408. Its totient is φ = 572552624.

The previous prime is 859037477. The next prime is 859037503. The reversal of 859037493 is 394730958.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 859037493 - 2⁴ = 859037477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859037093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19371 + ... + 45752.

It is an arithmetic number, because the mean of its divisors is an integer number (143207676).

Almost surely, 2^859037493 is an apocalyptic number.

It is an amenable number.

859037493 is a deficient number, since it is larger than the sum of its proper divisors (286623915).

859037493 is a wasteful number, since it uses less digits than its factorization.

859037493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69523.

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 859037493 is about 29309.3413948523. The cubic root of 859037493 is about 950.6136360494.

The spelling of 859037493 in words is "eight hundred fifty-nine million, thirty-seven thousand, four hundred ninety-three".