6425849 has 4 divisors (see below), whose sum is σ = 6647460. Its totient is φ = 6204240.

The previous prime is 6425833. The next prime is 6425863. The reversal of 6425849 is 9485246.

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 1607824 + 4818025 = 1268^2 + 2195^2 .

It is a cyclic number.

It is not a de Polignac number, because 6425849 - 2⁴ = 6425833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6425869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110762 + ... + 110819.

It is an arithmetic number, because the mean of its divisors is an integer number (1661865).

Almost surely, 2^6425849 is an apocalyptic number.

It is an amenable number.

6425849 is a deficient number, since it is larger than the sum of its proper divisors (221611).

6425849 is a wasteful number, since it uses less digits than its factorization.

6425849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221610.

The product of its digits is 69120, while the sum is 38.

The square root of 6425849 is about 2534.9258371795. The cubic root of 6425849 is about 185.9131768056.

The spelling of 6425849 in words is "six million, four hundred twenty-five thousand, eight hundred forty-nine".