6387149 has 4 divisors (see below), whose sum is σ = 6429600. Its totient is φ = 6344700.

The previous prime is 6387131. The next prime is 6387179. The reversal of 6387149 is 9417836.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6387149 - 2¹² = 6383053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6387109) 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 3 ways as a sum of consecutive naturals, for example, 20999 + ... + 21300.

It is an arithmetic number, because the mean of its divisors is an integer number (1607400).

Almost surely, 2^6387149 is an apocalyptic number.

It is an amenable number.

6387149 is a deficient number, since it is larger than the sum of its proper divisors (42451).

6387149 is a wasteful number, since it uses less digits than its factorization.

6387149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42450.

The product of its digits is 36288, while the sum is 38.

The square root of 6387149 is about 2527.2809499539. The cubic root of 6387149 is about 185.5392012046.

The spelling of 6387149 in words is "six million, three hundred eighty-seven thousand, one hundred forty-nine".