6403882 has 4 divisors (see below), whose sum is σ = 9605826. Its totient is φ = 3201940.

The previous prime is 6403877. The next prime is 6403889. The reversal of 6403882 is 2883046.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2883046 = 2 ⋅1441523.

It can be written as a sum of positive squares in only one way, i.e., 4888521 + 1515361 = 2211^2 + 1231^2 .

It is not an unprimeable number, because it can be changed into a prime (6403889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600969 + ... + 1600972.

Almost surely, 2^6403882 is an apocalyptic number.

6403882 is a deficient number, since it is larger than the sum of its proper divisors (3201944).

6403882 is a wasteful number, since it uses less digits than its factorization.

6403882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201943.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 6403882 is about 2530.5892594414. The cubic root of 6403882 is about 185.7010846069.

The spelling of 6403882 in words is "six million, four hundred three thousand, eight hundred eighty-two".