5437861 has 12 divisors (see below), whose sum is σ = 6438796. Its totient is φ = 4561920.

The previous prime is 5437849. The next prime is 5437889. The reversal of 5437861 is 1687345.

It can be written as a sum of positive squares in 2 ways, for example, as 352836 + 5085025 = 594^2 + 2255^2 .

It is not a de Polignac number, because 5437861 - 2¹⁵ = 5405093 is a prime.

5437861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5437801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156 + ... + 3301.

Almost surely, 2^5437861 is an apocalyptic number.

It is an amenable number.

5437861 is a deficient number, since it is larger than the sum of its proper divisors (1000935).

5437861 is a wasteful number, since it uses less digits than its factorization.

5437861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3492 (or 3481 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 5437861 is about 2331.9221685125. The cubic root of 5437861 is about 175.8501328383.

The spelling of 5437861 in words is "five million, four hundred thirty-seven thousand, eight hundred sixty-one".