6641654 has 4 divisors (see below), whose sum is σ = 9962484. Its totient is φ = 3320826.

The previous prime is 6641633. The next prime is 6641669. The reversal of 6641654 is 4561466.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×6641654² = 88223135711432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6641654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1660412 + ... + 1660415.

It is an arithmetic number, because the mean of its divisors is an integer number (2490621).

Almost surely, 2^6641654 is an apocalyptic number.

6641654 is a deficient number, since it is larger than the sum of its proper divisors (3320830).

6641654 is a wasteful number, since it uses less digits than its factorization.

6641654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3320829.

The product of its digits is 17280, while the sum is 32.

The square root of 6641654 is about 2577.1406636038. The cubic root of 6641654 is about 187.9715325841.

The spelling of 6641654 in words is "six million, six hundred forty-one thousand, six hundred fifty-four".