434639 has 8 divisors (see below), whose sum is σ = 473328. Its totient is φ = 397440.

The previous prime is 434611. The next prime is 434647. The reversal of 434639 is 936434.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 434639 - 2⁸ = 434383 is a prime.

It is a super-2 number, since 2×434639² = 377822120642, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284 + ... + 974.

It is an arithmetic number, because the mean of its divisors is an integer number (59166).

2⁴³⁴⁶³⁹ is an apocalyptic number.

434639 is a deficient number, since it is larger than the sum of its proper divisors (38689).

434639 is a wasteful number, since it uses less digits than its factorization.

434639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745.

The product of its digits is 7776, while the sum is 29.

The square root of 434639 is about 659.2715677170. The cubic root of 434639 is about 75.7488826276.

It can be divided in two parts, 4 and 34639, that added together give a palindrome (34643).

The spelling of 434639 in words is "four hundred thirty-four thousand, six hundred thirty-nine".