859356947 has 4 divisors (see below), whose sum is σ = 904586280. Its totient is φ = 814127616.

The previous prime is 859356937. The next prime is 859356961. The reversal of 859356947 is 749653958.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 859356947 - 2⁸ = 859356691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 859356892 and 859356901.

It is not an unprimeable number, because it can be changed into a prime (859356917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22614638 + ... + 22614675.

It is an arithmetic number, because the mean of its divisors is an integer number (226146570).

Almost surely, 2^859356947 is an apocalyptic number.

859356947 is a deficient number, since it is larger than the sum of its proper divisors (45229333).

859356947 is a wasteful number, since it uses less digits than its factorization.

859356947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45229332.

The product of its digits is 8164800, while the sum is 56.

The square root of 859356947 is about 29314.7905842767. The cubic root of 859356947 is about 950.7314577182.

The spelling of 859356947 in words is "eight hundred fifty-nine million, three hundred fifty-six thousand, nine hundred forty-seven".