5917861 has 2 divisors, whose sum is σ = 5917862. Its totient is φ = 5917860.

The previous prime is 5917859. The next prime is 5917871. The reversal of 5917861 is 1687195.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5909761 + 8100 = 2431^2 + 90^2 .

It is a cyclic number.

It is not a de Polignac number, because 5917861 - 2¹ = 5917859 is a prime.

Together with 5917859, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 5917861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5917871) 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 as a sum of consecutive naturals, namely, 2958930 + 2958931.

It is an arithmetic number, because the mean of its divisors is an integer number (2958931).

Almost surely, 2^5917861 is an apocalyptic number.

5917861 is the 1405-th hex number.

It is an amenable number.

5917861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5917861 is an equidigital number, since it uses as much as digits as its factorization.

5917861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 37.

The square root of 5917861 is about 2432.6654106145. The cubic root of 5917861 is about 180.8790437558.

The spelling of 5917861 in words is "five million, nine hundred seventeen thousand, eight hundred sixty-one".