6485986 has 16 divisors (see below), whose sum is σ = 10524024. Its totient is φ = 2980224.

The previous prime is 6485971. The next prime is 6485987. The reversal of 6485986 is 6895846.

It can be written as a sum of positive squares in 4 ways, for example, as 2205225 + 4280761 = 1485^2 + 2069^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6485987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7740 + ... + 8536.

Almost surely, 2^6485986 is an apocalyptic number.

6485986 is a deficient number, since it is larger than the sum of its proper divisors (4038038).

6485986 is a wasteful number, since it uses less digits than its factorization.

6485986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125.

The product of its digits is 414720, while the sum is 46.

The square root of 6485986 is about 2546.7599023072. The cubic root of 6485986 is about 186.4913397690.

The spelling of 6485986 in words is "six million, four hundred eighty-five thousand, nine hundred eighty-six".