2968781 has 2 divisors, whose sum is σ = 2968782. Its totient is φ = 2968780.

The previous prime is 2968753. The next prime is 2968783. The reversal of 2968781 is 1878692.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2941225 + 27556 = 1715^2 + 166^2 .

It is a cyclic number.

It is not a de Polignac number, because 2968781 - 2⁶ = 2968717 is a prime.

It is a super-2 number, since 2×2968781² = 17627321251922, which contains 22 as substring.

Together with 2968783, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2968783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1484390 + 1484391.

It is an arithmetic number, because the mean of its divisors is an integer number (1484391).

2^2968781 is an apocalyptic number.

It is an amenable number.

2968781 is a deficient number, since it is larger than the sum of its proper divisors (1).

2968781 is an equidigital number, since it uses as much as digits as its factorization.

2968781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 41.

The square root of 2968781 is about 1723.0150898933. The cubic root of 2968781 is about 143.7229272268.

The spelling of 2968781 in words is "two million, nine hundred sixty-eight thousand, seven hundred eighty-one".