432639 has 12 divisors (see below), whose sum is σ = 637416. Its totient is φ = 282672.

The previous prime is 432637. The next prime is 432659. The reversal of 432639 is 936234.

It is not a de Polignac number, because 432639 - 2¹ = 432637 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 4⁸ + 3⁵ + 6⁷ + 2¹³ + 3⁹ + 9⁵ .

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24 + ... + 930.

It is an arithmetic number, because the mean of its divisors is an integer number (53118).

2⁴³²⁶³⁹ is an apocalyptic number.

432639 is a deficient number, since it is larger than the sum of its proper divisors (204777).

432639 is a wasteful number, since it uses less digits than its factorization.

432639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966 (or 963 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 432639 is about 657.7529931517. The cubic root of 432639 is about 75.6325172957.

The spelling of 432639 in words is "four hundred thirty-two thousand, six hundred thirty-nine".