6387049 has 4 divisors (see below), whose sum is σ = 6405700. Its totient is φ = 6368400.

The previous prime is 6387041. The next prime is 6387061. The reversal of 6387049 is 9407836.

6387049 = T₂₀₆₂ + T₂₀₆₃ + T₂₀₆₄.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1871424 + 4515625 = 1368^2 + 2125^2 .

It is a cyclic number.

It is not a de Polignac number, because 6387049 - 2³ = 6387041 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6386999 and 6387017.

It is not an unprimeable number, because it can be changed into a prime (6387041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8802 + ... + 9499.

It is an arithmetic number, because the mean of its divisors is an integer number (1601425).

Almost surely, 2^6387049 is an apocalyptic number.

6387049 is the 2064-th centered triangular number.

It is an amenable number.

6387049 is a deficient number, since it is larger than the sum of its proper divisors (18651).

6387049 is a wasteful number, since it uses less digits than its factorization.

6387049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18650.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 6387049 is about 2527.2611657682. The cubic root of 6387049 is about 185.5382329052.

The spelling of 6387049 in words is "six million, three hundred eighty-seven thousand, forty-nine".