4084429 has 4 divisors (see below), whose sum is σ = 4088476. Its totient is φ = 4080384.

The previous prime is 4084427. The next prime is 4084439. The reversal of 4084429 is 9244804.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 940900 + 3143529 = 970^2 + 1773^2 .

It is a cyclic number.

It is not a de Polignac number, because 4084429 - 2¹ = 4084427 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4084429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4084427) 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, 877 + ... + 2989.

It is an arithmetic number, because the mean of its divisors is an integer number (1022119).

Almost surely, 2^4084429 is an apocalyptic number.

It is an amenable number.

4084429 is a deficient number, since it is larger than the sum of its proper divisors (4047).

4084429 is a wasteful number, since it uses less digits than its factorization.

4084429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4046.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 4084429 is about 2020.9970311705. The cubic root of 4084429 is about 159.8491938415.

The spelling of 4084429 in words is "four million, eighty-four thousand, four hundred twenty-nine".