6426849 has 32 divisors (see below), whose sum is σ = 10257408. Its totient is φ = 3528000.

The previous prime is 6426809. The next prime is 6426851. The reversal of 6426849 is 9486246.

It is not a de Polignac number, because 6426849 - 2⁸ = 6426593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

6426849 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6426809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30354 + ... + 30564.

It is an arithmetic number, because the mean of its divisors is an integer number (320544).

Almost surely, 2^6426849 is an apocalyptic number.

It is an amenable number.

6426849 is a deficient number, since it is larger than the sum of its proper divisors (3830559).

6426849 is a wasteful number, since it uses less digits than its factorization.

6426849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309.

The product of its digits is 82944, while the sum is 39.

The square root of 6426849 is about 2535.1230739355. The cubic root of 6426849 is about 185.9228203320.

The spelling of 6426849 in words is "six million, four hundred twenty-six thousand, eight hundred forty-nine".