6313861 has 2 divisors, whose sum is σ = 6313862. Its totient is φ = 6313860.

The previous prime is 6313831. The next prime is 6313889. The reversal of 6313861 is 1683136.

It is an a-pointer prime, because the next prime (6313889) can be obtained adding 6313861 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5832225 + 481636 = 2415^2 + 694^2 .

It is a cyclic number.

It is not a de Polignac number, because 6313861 - 2⁵ = 6313829 is a prime.

6313861 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6313831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3156930 + 3156931.

It is an arithmetic number, because the mean of its divisors is an integer number (3156931).

Almost surely, 2^6313861 is an apocalyptic number.

It is an amenable number.

6313861 is a deficient number, since it is larger than the sum of its proper divisors (1).

6313861 is an equidigital number, since it uses as much as digits as its factorization.

6313861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 6313861 is about 2512.7397398059. The cubic root of 6313861 is about 184.8268260158.

Adding to 6313861 its reverse (1683136), we get a palindrome (7996997).

It can be divided in two parts, 63 and 13861, that added together give a square (13924 = 118²).

The spelling of 6313861 in words is "six million, three hundred thirteen thousand, eight hundred sixty-one".