6426549 has 6 divisors (see below), whose sum is σ = 9282806. Its totient is φ = 4284360.

The previous prime is 6426523. The next prime is 6426557. The reversal of 6426549 is 9456246.

6426549 is a `hidden beast` number, since 642 + 6 + 5 + 4 + 9 = 666.

6426549 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6426225 + 324 = 2535^2 + 18^2 .

It is not a de Polignac number, because 6426549 - 2⁷ = 6426421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6426509) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357022 + ... + 357039.

Almost surely, 2^6426549 is an apocalyptic number.

It is an amenable number.

6426549 is a deficient number, since it is larger than the sum of its proper divisors (2856257).

6426549 is a wasteful number, since it uses less digits than its factorization.

6426549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714067 (or 714064 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 6426549 is about 2535.0639045200. The cubic root of 6426549 is about 185.9199273791.

The spelling of 6426549 in words is "six million, four hundred twenty-six thousand, five hundred forty-nine".