434665 has 16 divisors (see below), whose sum is σ = 650880. Its totient is φ = 270720.

The previous prime is 434659. The next prime is 434683. The reversal of 434665 is 566434.

It is not a de Polignac number, because 434665 - 2¹⁷ = 303593 is a prime.

It is a nialpdrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180 + ... + 949.

It is an arithmetic number, because the mean of its divisors is an integer number (40680).

2⁴³⁴⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

434665 is a deficient number, since it is larger than the sum of its proper divisors (216215).

434665 is a wasteful number, since it uses less digits than its factorization.

434665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152.

The product of its digits is 8640, while the sum is 28.

The square root of 434665 is about 659.2912861551. The cubic root of 434665 is about 75.7503930241.

Subtracting 434665 from its reverse (566434), we obtain a square (131769 = 363²).

The spelling of 434665 in words is "four hundred thirty-four thousand, six hundred sixty-five".