5819661 has 32 divisors (see below), whose sum is σ = 9446400. Its totient is φ = 3525120.

The previous prime is 5819659. The next prime is 5819669. The reversal of 5819661 is 1669185.

It is not a de Polignac number, because 5819661 - 2¹ = 5819659 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5819669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14025 + ... + 14433.

It is an arithmetic number, because the mean of its divisors is an integer number (295200).

Almost surely, 2^5819661 is an apocalyptic number.

5819661 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5819661 is a deficient number, since it is larger than the sum of its proper divisors (3626739).

5819661 is a wasteful number, since it uses less digits than its factorization.

5819661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 460 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 5819661 is about 2412.3973553293. The cubic root of 5819661 is about 179.8729659230.

The spelling of 5819661 in words is "five million, eight hundred nineteen thousand, six hundred sixty-one".