432981 has 6 divisors (see below), whose sum is σ = 625430. Its totient is φ = 288648.

The previous prime is 432979. The next prime is 432983. The reversal of 432981 is 189234.

It is an interprime number because it is at equal distance from previous prime (432979) and next prime (432983).

It can be written as a sum of positive squares in only one way, i.e., 378225 + 54756 = 615^2 + 234^2 .

It is not a de Polignac number, because 432981 - 2¹ = 432979 is a prime.

It is a super-2 number, since 2×432981² = 374945092722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432983) 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 5 ways as a sum of consecutive naturals, for example, 24046 + ... + 24063.

2⁴³²⁹⁸¹ is an apocalyptic number.

It is an amenable number.

432981 is a deficient number, since it is larger than the sum of its proper divisors (192449).

432981 is a wasteful number, since it uses less digits than its factorization.

432981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48115 (or 48112 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 432981 is about 658.0129178063. The cubic root of 432981 is about 75.6524411492.

The spelling of 432981 in words is "four hundred thirty-two thousand, nine hundred eighty-one".