859889129 has 16 divisors (see below), whose sum is σ = 977412096. Its totient is φ = 749398800.

The previous prime is 859889117. The next prime is 859889141. The reversal of 859889129 is 921988958.

It is an interprime number because it is at equal distance from previous prime (859889117) and next prime (859889141).

It is a cyclic number.

It is not a de Polignac number, because 859889129 - 2⁴ = 859889113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (859889159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24704 + ... + 48270.

It is an arithmetic number, because the mean of its divisors is an integer number (61088256).

Almost surely, 2^859889129 is an apocalyptic number.

It is an amenable number.

859889129 is a deficient number, since it is larger than the sum of its proper divisors (117522967).

859889129 is a wasteful number, since it uses less digits than its factorization.

859889129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23716.

The product of its digits is 3732480, while the sum is 59.

The square root of 859889129 is about 29323.8662014408. The cubic root of 859889129 is about 950.9276733351.

It can be divided in two parts, 859 and 889129, that added together give a palindrome (889988).

The spelling of 859889129 in words is "eight hundred fifty-nine million, eight hundred eighty-nine thousand, one hundred twenty-nine".