2959681 has 2 divisors, whose sum is σ = 2959682. Its totient is φ = 2959680.

The previous prime is 2959673. The next prime is 2959699. The reversal of 2959681 is 1869592.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1648656 + 1311025 = 1284^2 + 1145^2 .

It is a cyclic number.

It is not a de Polignac number, because 2959681 - 2³ = 2959673 is a prime.

It is a super-2 number, since 2×2959681² = 17519423243522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2959631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1479840 + 1479841.

It is an arithmetic number, because the mean of its divisors is an integer number (1479841).

2^2959681 is an apocalyptic number.

It is an amenable number.

2959681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2959681 is an equidigital number, since it uses as much as digits as its factorization.

2959681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 40.

The square root of 2959681 is about 1720.3723434187. The cubic root of 2959681 is about 143.5759289319.

The spelling of 2959681 in words is "two million, nine hundred fifty-nine thousand, six hundred eighty-one".