6923894281 has 2 divisors, whose sum is σ = 6923894282. Its totient is φ = 6923894280.

The previous prime is 6923894269. The next prime is 6923894287. The reversal of 6923894281 is 1824983296.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5858524681 + 1065369600 = 76541^2 + 32640^2 .

It is a cyclic number.

It is not a de Polignac number, because 6923894281 - 2¹¹ = 6923892233 is a prime.

It is a super-2 number, since 2×6923894281² = 95880624028929013922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6923894287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3461947140 + 3461947141.

It is an arithmetic number, because the mean of its divisors is an integer number (3461947141).

Almost surely, 2^6923894281 is an apocalyptic number.

It is an amenable number.

6923894281 is a deficient number, since it is larger than the sum of its proper divisors (1).

6923894281 is an equidigital number, since it uses as much as digits as its factorization.

6923894281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 52.

The square root of 6923894281 is about 83209.9409986571. The cubic root of 6923894281 is about 1905.9732863360.

The spelling of 6923894281 in words is "six billion, nine hundred twenty-three million, eight hundred ninety-four thousand, two hundred eighty-one".