1694434913 has 2 divisors, whose sum is σ = 1694434914. Its totient is φ = 1694434912.

The previous prime is 1694434871. The next prime is 1694434927. The reversal of 1694434913 is 3194344961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1237843489 + 456591424 = 35183^2 + 21368^2 .

It is a cyclic number.

It is not a de Polignac number, because 1694434913 - 2⁶ = 1694434849 is a prime.

It is a super-2 number, since 2×1694434913² = 5742219348786635138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1694434213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 847217456 + 847217457.

It is an arithmetic number, because the mean of its divisors is an integer number (847217457).

Almost surely, 2^1694434913 is an apocalyptic number.

It is an amenable number.

1694434913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1694434913 is an equidigital number, since it uses as much as digits as its factorization.

1694434913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 44.

The square root of 1694434913 is about 41163.5143421939. The cubic root of 1694434913 is about 1192.1794471163.

The spelling of 1694434913 in words is "one billion, six hundred ninety-four million, four hundred thirty-four thousand, nine hundred thirteen".