5871961 has 2 divisors, whose sum is σ = 5871962. Its totient is φ = 5871960.

The previous prime is 5871959. The next prime is 5871973. The reversal of 5871961 is 1691785.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4076361 + 1795600 = 2019^2 + 1340^2 .

It is a cyclic number.

It is not a de Polignac number, because 5871961 - 2¹ = 5871959 is a prime.

Together with 5871959, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 5871961.

It is not a weakly prime, because it can be changed into another prime (5871911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2935980 + 2935981.

It is an arithmetic number, because the mean of its divisors is an integer number (2935981).

Almost surely, 2^5871961 is an apocalyptic number.

It is an amenable number.

5871961 is a deficient number, since it is larger than the sum of its proper divisors (1).

5871961 is an equidigital number, since it uses as much as digits as its factorization.

5871961 is an evil number, because the sum of its binary digits is even.

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

The square root of 5871961 is about 2423.2129497838. The cubic root of 5871961 is about 180.4101859529.

The spelling of 5871961 in words is "five million, eight hundred seventy-one thousand, nine hundred sixty-one".