6485978 has 8 divisors (see below), whose sum is σ = 9780480. Its totient is φ = 3225820.

The previous prime is 6485971. The next prime is 6485987. The reversal of 6485978 is 8795846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6485971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8108 + ... + 8871.

It is an arithmetic number, because the mean of its divisors is an integer number (1222560).

Almost surely, 2^6485978 is an apocalyptic number.

6485978 is a deficient number, since it is larger than the sum of its proper divisors (3294502).

6485978 is a wasteful number, since it uses less digits than its factorization.

6485978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17172.

The product of its digits is 483840, while the sum is 47.

The square root of 6485978 is about 2546.7583316836. The cubic root of 6485978 is about 186.4912630944.

The spelling of 6485978 in words is "six million, four hundred eighty-five thousand, nine hundred seventy-eight".