6377649 has 8 divisors (see below), whose sum is σ = 8664192. Its totient is φ = 4171440.

The previous prime is 6377641. The next prime is 6377689. The reversal of 6377649 is 9467736.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6377649 - 2³ = 6377641 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6377649.

It is not an unprimeable number, because it can be changed into a prime (6377641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19897 + ... + 20214.

It is an arithmetic number, because the mean of its divisors is an integer number (1083024).

Almost surely, 2^6377649 is an apocalyptic number.

It is an amenable number.

6377649 is a deficient number, since it is larger than the sum of its proper divisors (2286543).

6377649 is a wasteful number, since it uses less digits than its factorization.

6377649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40167.

The product of its digits is 190512, while the sum is 42.

The square root of 6377649 is about 2525.4007602755. The cubic root of 6377649 is about 185.4471676008.

The spelling of 6377649 in words is "six million, three hundred seventy-seven thousand, six hundred forty-nine".