6451849 has 16 divisors (see below), whose sum is σ = 7128000. Its totient is φ = 5818176.

The previous prime is 6451847. The next prime is 6451853. The reversal of 6451849 is 9481546.

6451849 = 11² + 12² + ... + 268².

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6451849 - 2¹ = 6451847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6451843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43227 + ... + 43375.

It is an arithmetic number, because the mean of its divisors is an integer number (445500).

Almost surely, 2^6451849 is an apocalyptic number.

It is an amenable number.

6451849 is a deficient number, since it is larger than the sum of its proper divisors (676151).

6451849 is a wasteful number, since it uses less digits than its factorization.

6451849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264.

The product of its digits is 34560, while the sum is 37.

The square root of 6451849 is about 2540.0490152751. The cubic root of 6451849 is about 186.1635840722.

The spelling of 6451849 in words is "six million, four hundred fifty-one thousand, eight hundred forty-nine".