6466990 has 32 divisors (see below), whose sum is σ = 12065760. Its totient is φ = 2494464.

The previous prime is 6466969. The next prime is 6466991. The reversal of 6466990 is 996646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6466991) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 57174 + ... + 57286.

It is an arithmetic number, because the mean of its divisors is an integer number (377055).

Almost surely, 2^6466990 is an apocalyptic number.

6466990 is a deficient number, since it is larger than the sum of its proper divisors (5598770).

6466990 is a wasteful number, since it uses less digits than its factorization.

6466990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 6466990 is about 2543.0277230105. The cubic root of 6466990 is about 186.3090979524.

The spelling of 6466990 in words is "six million, four hundred sixty-six thousand, nine hundred ninety".