8491432 has 32 divisors (see below), whose sum is σ = 17447400. Its totient is φ = 3856384.

The previous prime is 8491429. The next prime is 8491451. The reversal of 8491432 is 2341948.

It can be written as a sum of positive squares in 4 ways, for example, as 6625476 + 1865956 = 2574^2 + 1366^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8491394 and 8491403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2868 + ... + 5020.

Almost surely, 2^8491432 is an apocalyptic number.

It is an amenable number.

8491432 is an abundant number, since it is smaller than the sum of its proper divisors (8955968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8491432 is a wasteful number, since it uses less digits than its factorization.

8491432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205 (or 2201 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 8491432 is about 2914.0061770696. The cubic root of 8491432 is about 204.0141602371.

The spelling of 8491432 in words is "eight million, four hundred ninety-one thousand, four hundred thirty-two".