6646354 has 32 divisors (see below), whose sum is σ = 12410496. Its totient is φ = 2622720.

The previous prime is 6646331. The next prime is 6646357. The reversal of 6646354 is 4536466.

It is a super-5 number, since 5×6646354⁵ (a number of 35 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (6646357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4179 + ... + 5545.

It is an arithmetic number, because the mean of its divisors is an integer number (387828).

Almost surely, 2^6646354 is an apocalyptic number.

6646354 is a deficient number, since it is larger than the sum of its proper divisors (5764142).

6646354 is a wasteful number, since it uses less digits than its factorization.

6646354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410.

The product of its digits is 51840, while the sum is 34.

The square root of 6646354 is about 2578.0523656435. The cubic root of 6646354 is about 188.0158617973.

The spelling of 6646354 in words is "six million, six hundred forty-six thousand, three hundred fifty-four".