859471431 has 64 divisors (see below), whose sum is σ = 1507968000. Its totient is φ = 422516736.

The previous prime is 859471427. The next prime is 859471447. The reversal of 859471431 is 134174958.

It is a happy number.

It is not a de Polignac number, because 859471431 - 2² = 859471427 is a prime.

It is a super-2 number, since 2×859471431² = 1477382281410375522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859471471) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 505020 + ... + 506718.

It is an arithmetic number, because the mean of its divisors is an integer number (23562000).

Almost surely, 2^859471431 is an apocalyptic number.

859471431 is a deficient number, since it is larger than the sum of its proper divisors (648496569).

859471431 is a wasteful number, since it uses less digits than its factorization.

859471431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848.

The product of its digits is 120960, while the sum is 42.

The square root of 859471431 is about 29316.7431854222. The cubic root of 859471431 is about 950.7736748309.

It can be divided in two parts, 85947 and 1431, that added together give a palindrome (87378).

The spelling of 859471431 in words is "eight hundred fifty-nine million, four hundred seventy-one thousand, four hundred thirty-one".