5449681 has 4 divisors (see below), whose sum is σ = 5458752. Its totient is φ = 5440612.

The previous prime is 5449667. The next prime is 5449687. The reversal of 5449681 is 1869445.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5449681 - 2⁷ = 5449553 is a prime.

It is a super-2 number, since 2×5449681² = 59398046003522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5449681.

It is not an unprimeable number, because it can be changed into a prime (5449687) 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, 3565 + ... + 4858.

It is an arithmetic number, because the mean of its divisors is an integer number (1364688).

Almost surely, 2^5449681 is an apocalyptic number.

It is an amenable number.

5449681 is a deficient number, since it is larger than the sum of its proper divisors (9071).

5449681 is an equidigital number, since it uses as much as digits as its factorization.

5449681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9070.

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

The square root of 5449681 is about 2334.4551826925. The cubic root of 5449681 is about 175.9774527762.

The spelling of 5449681 in words is "five million, four hundred forty-nine thousand, six hundred eighty-one".