5816649 has 4 divisors (see below), whose sum is σ = 7755536. Its totient is φ = 3877764.

The previous prime is 5816647. The next prime is 5816651. The reversal of 5816649 is 9466185.

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 an interprime number because it is at equal distance from previous prime (5816647) and next prime (5816651).

It is not a de Polignac number, because 5816649 - 2¹ = 5816647 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5816647) 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, 969439 + ... + 969444.

It is an arithmetic number, because the mean of its divisors is an integer number (1938884).

Almost surely, 2^5816649 is an apocalyptic number.

It is an amenable number.

5816649 is a deficient number, since it is larger than the sum of its proper divisors (1938887).

5816649 is a wasteful number, since it uses less digits than its factorization.

5816649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938886.

The product of its digits is 51840, while the sum is 39.

The square root of 5816649 is about 2411.7729992684. The cubic root of 5816649 is about 179.8419291285.

The spelling of 5816649 in words is "five million, eight hundred sixteen thousand, six hundred forty-nine".