6461449 has 4 divisors (see below), whose sum is σ = 6550036. Its totient is φ = 6372864.

The previous prime is 6461443. The next prime is 6461471. The reversal of 6461449 is 9441646.

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 4687225 + 1774224 = 2165^2 + 1332^2 .

It is a cyclic number.

It is not a de Polignac number, because 6461449 - 2⁵ = 6461417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6461443) 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, 44184 + ... + 44329.

It is an arithmetic number, because the mean of its divisors is an integer number (1637509).

Almost surely, 2^6461449 is an apocalyptic number.

It is an amenable number.

6461449 is a deficient number, since it is larger than the sum of its proper divisors (88587).

6461449 is an equidigital number, since it uses as much as digits as its factorization.

6461449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88586.

The product of its digits is 20736, while the sum is 34.

The square root of 6461449 is about 2541.9380401575. The cubic root of 6461449 is about 186.2558720729.

The spelling of 6461449 in words is "six million, four hundred sixty-one thousand, four hundred forty-nine".