859497 has 4 divisors (see below), whose sum is σ = 1146000. Its totient is φ = 572996.

The previous prime is 859493. The next prime is 859513. The reversal of 859497 is 794958.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 859497 - 2² = 859493 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (859493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143247 + ... + 143252.

It is an arithmetic number, because the mean of its divisors is an integer number (286500).

2⁸⁵⁹⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

859497 is a deficient number, since it is larger than the sum of its proper divisors (286503).

859497 is a wasteful number, since it uses less digits than its factorization.

859497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286502.

The product of its digits is 90720, while the sum is 42.

The square root of 859497 is about 927.0906104583. The cubic root of 859497 is about 95.0783103142.

The spelling of 859497 in words is "eight hundred fifty-nine thousand, four hundred ninety-seven".