1694982893 has 2 divisors, whose sum is σ = 1694982894. Its totient is φ = 1694982892.

The previous prime is 1694982881. The next prime is 1694982899. The reversal of 1694982893 is 3982894961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1111422244 + 583560649 = 33338^2 + 24157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1694982893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1694982899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 847491446 + 847491447.

It is an arithmetic number, because the mean of its divisors is an integer number (847491447).

Almost surely, 2^1694982893 is an apocalyptic number.

It is an amenable number.

1694982893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1694982893 is an equidigital number, since it uses as much as digits as its factorization.

1694982893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6718464, while the sum is 59.

The square root of 1694982893 is about 41170.1699413544. The cubic root of 1694982893 is about 1192.3079501503.

The spelling of 1694982893 in words is "one billion, six hundred ninety-four million, nine hundred eighty-two thousand, eight hundred ninety-three".