6447432 has 16 divisors (see below), whose sum is σ = 16118640. Its totient is φ = 2149136.

The previous prime is 6447421. The next prime is 6447443. The reversal of 6447432 is 2347446.

It is an interprime number because it is at equal distance from previous prime (6447421) and next prime (6447443).

It is a self number, because there is not a number n which added to its sum of digits gives 6447432.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134298 + ... + 134345.

It is an arithmetic number, because the mean of its divisors is an integer number (1007415).

Almost surely, 2^6447432 is an apocalyptic number.

It is an amenable number.

6447432 is an abundant number, since it is smaller than the sum of its proper divisors (9671208).

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

6447432 is a wasteful number, since it uses less digits than its factorization.

6447432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268652 (or 268648 counting only the distinct ones).

The product of its digits is 16128, while the sum is 30.

The square root of 6447432 is about 2539.1793950015. The cubic root of 6447432 is about 186.1210912266.

The spelling of 6447432 in words is "six million, four hundred forty-seven thousand, four hundred thirty-two".