868429 has 4 divisors (see below), whose sum is σ = 878976. Its totient is φ = 857884.

The previous prime is 868423. The next prime is 868451. The reversal of 868429 is 924868.

868429 is nontrivially palindromic in base 16.

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 868429 - 2⁵ = 868397 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 (868423) 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, 5149 + ... + 5314.

It is an arithmetic number, because the mean of its divisors is an integer number (219744).

2⁸⁶⁸⁴²⁹ is an apocalyptic number.

It is an amenable number.

868429 is a deficient number, since it is larger than the sum of its proper divisors (10547).

868429 is a wasteful number, since it uses less digits than its factorization.

868429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10546.

The product of its digits is 27648, while the sum is 37.

The square root of 868429 is about 931.8953803942. The cubic root of 868429 is about 95.4065311745.

It can be divided in two parts, 86 and 8429, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 868429 in words is "eight hundred sixty-eight thousand, four hundred twenty-nine".