859406461 has 4 divisors (see below), whose sum is σ = 904638400. Its totient is φ = 814174524.

The previous prime is 859406447. The next prime is 859406519. The reversal of 859406461 is 164604958.

859406461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 859406461 - 2¹⁵ = 859373693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859406411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22615941 + ... + 22615978.

It is an arithmetic number, because the mean of its divisors is an integer number (226159600).

Almost surely, 2^859406461 is an apocalyptic number.

It is an amenable number.

859406461 is a deficient number, since it is larger than the sum of its proper divisors (45231939).

859406461 is a wasteful number, since it uses less digits than its factorization.

859406461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45231938.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 859406461 is about 29315.6350946044. The cubic root of 859406461 is about 950.7497169579.

The spelling of 859406461 in words is "eight hundred fifty-nine million, four hundred six thousand, four hundred sixty-one".