855429 has 8 divisors (see below), whose sum is σ = 1145472. Its totient is φ = 567840.

The previous prime is 855427. The next prime is 855431. The reversal of 855429 is 924558.

It is an interprime number because it is at equal distance from previous prime (855427) and next prime (855431).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 855429 - 2¹ = 855427 is a prime.

855429 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 855429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484 + ... + 1394.

It is an arithmetic number, because the mean of its divisors is an integer number (143184).

2⁸⁵⁵⁴²⁹ is an apocalyptic number.

It is an amenable number.

855429 is a deficient number, since it is larger than the sum of its proper divisors (290043).

855429 is a wasteful number, since it uses less digits than its factorization.

855429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227.

The product of its digits is 14400, while the sum is 33.

The square root of 855429 is about 924.8940479860. The cubic root of 855429 is about 94.9280711302.

The spelling of 855429 in words is "eight hundred fifty-five thousand, four hundred twenty-nine".