6489378 has 24 divisors (see below), whose sum is σ = 16069248. Its totient is φ = 1854072.

The previous prime is 6489367. The next prime is 6489389. The reversal of 6489378 is 8739846.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6489367) and next prime (6489389).

It is a super-2 number, since 2×6489378² = 84224053653768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25626 + ... + 25877.

It is an arithmetic number, because the mean of its divisors is an integer number (669552).

Almost surely, 2^6489378 is an apocalyptic number.

6489378 is an abundant number, since it is smaller than the sum of its proper divisors (9579870).

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

6489378 is a wasteful number, since it uses less digits than its factorization.

6489378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51518 (or 51515 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 6489378 is about 2547.4257594678. The cubic root of 6489378 is about 186.5238441244.

The spelling of 6489378 in words is "six million, four hundred eighty-nine thousand, three hundred seventy-eight".