6409982 has 4 divisors (see below), whose sum is σ = 9614976. Its totient is φ = 3204990.

The previous prime is 6409943. The next prime is 6410009. The reversal of 6409982 is 2899046.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2899046 = 2 ⋅1449523.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1602494 + ... + 1602497.

It is an arithmetic number, because the mean of its divisors is an integer number (2403744).

Almost surely, 2^6409982 is an apocalyptic number.

6409982 is a deficient number, since it is larger than the sum of its proper divisors (3204994).

6409982 is a wasteful number, since it uses less digits than its factorization.

6409982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3204993.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 6409982 is about 2531.7942254457. The cubic root of 6409982 is about 185.7600289124.

The spelling of 6409982 in words is "six million, four hundred nine thousand, nine hundred eighty-two".