6453986 has 24 divisors (see below), whose sum is σ = 12287376. Its totient is φ = 2514120.

The previous prime is 6453973. The next prime is 6453989. The reversal of 6453986 is 6893546.

It is not an unprimeable number, because it can be changed into a prime (6453989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1916 + ... + 4071.

It is an arithmetic number, because the mean of its divisors is an integer number (511974).

Almost surely, 2^6453986 is an apocalyptic number.

6453986 is a deficient number, since it is larger than the sum of its proper divisors (5833390).

6453986 is a wasteful number, since it uses less digits than its factorization.

6453986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6014 (or 6007 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 6453986 is about 2540.4696416214. The cubic root of 6453986 is about 186.1841356827.

The spelling of 6453986 in words is "six million, four hundred fifty-three thousand, nine hundred eighty-six".