523429 has 4 divisors (see below), whose sum is σ = 526284. Its totient is φ = 520576.

The previous prime is 523427. The next prime is 523433. The reversal of 523429 is 924325.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 448900 + 74529 = 670^2 + 273^2 .

It is a cyclic number.

It is not a de Polignac number, because 523429 - 2¹ = 523427 is a prime.

It is a d-powerful number, because it can be written as 5⁸ + 2¹² + 4⁶ + 3³ + 2¹⁶ + 9⁵ .

It is a Duffinian number.

523429 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1132 + ... + 1525.

It is an arithmetic number, because the mean of its divisors is an integer number (131571).

2⁵²³⁴²⁹ is an apocalyptic number.

It is an amenable number.

523429 is a deficient number, since it is larger than the sum of its proper divisors (2855).

523429 is a wasteful number, since it uses less digits than its factorization.

523429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2854.

The product of its digits is 2160, while the sum is 25.

The square root of 523429 is about 723.4839320952. The cubic root of 523429 is about 80.5908853529.

It can be divided in two parts, 52 and 3429, that added together give a square (3481 = 59²).

The spelling of 523429 in words is "five hundred twenty-three thousand, four hundred twenty-nine".