6453966 has 16 divisors (see below), whose sum is σ = 12933504. Its totient is φ = 2147064.

The previous prime is 6453949. The next prime is 6453973. The reversal of 6453966 is 6693546.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4285 + ... + 5591.

It is an arithmetic number, because the mean of its divisors is an integer number (808344).

Almost surely, 2^6453966 is an apocalyptic number.

6453966 is an abundant number, since it is smaller than the sum of its proper divisors (6479538).

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

6453966 is a wasteful number, since it uses less digits than its factorization.

6453966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135.

The product of its digits is 116640, while the sum is 39.

The square root of 6453966 is about 2540.4657053383. The cubic root of 6453966 is about 186.1839433630.

The spelling of 6453966 in words is "six million, four hundred fifty-three thousand, nine hundred sixty-six".