2937881 has 2 divisors, whose sum is σ = 2937882. Its totient is φ = 2937880.

The previous prime is 2937853. The next prime is 2937929. The reversal of 2937881 is 1887392.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2859481 + 78400 = 1691^2 + 280^2 .

It is a cyclic number.

It is not a de Polignac number, because 2937881 - 2⁶ = 2937817 is a prime.

It is a super-2 number, since 2×2937881² = 17262289540322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2937581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1468940 + 1468941.

It is an arithmetic number, because the mean of its divisors is an integer number (1468941).

2^2937881 is an apocalyptic number.

It is an amenable number.

2937881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2937881 is an equidigital number, since it uses as much as digits as its factorization.

2937881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 38.

The square root of 2937881 is about 1714.0247956199. The cubic root of 2937881 is about 143.2225494540. Note that the first 3 decimals are identical.

The spelling of 2937881 in words is "two million, nine hundred thirty-seven thousand, eight hundred eighty-one".