2937856813 has 2 divisors, whose sum is σ = 2937856814. Its totient is φ = 2937856812.

The previous prime is 2937856799. The next prime is 2937856841. The reversal of 2937856813 is 3186587392.

2937856813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2937856804 + 9 = 54202^2 + 3^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2937856813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2937856613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1468928406 + 1468928407.

It is an arithmetic number, because the mean of its divisors is an integer number (1468928407).

Almost surely, 2^2937856813 is an apocalyptic number.

It is an amenable number.

2937856813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2937856813 is an equidigital number, since it uses as much as digits as its factorization.

2937856813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 52.

The square root of 2937856813 is about 54202.0000830228. Note that the first 4 decimals coincide. The cubic root of 2937856813 is about 1432.2215641183.

The spelling of 2937856813 in words is "two billion, nine hundred thirty-seven million, eight hundred fifty-six thousand, eight hundred thirteen".