1673699369 has 2 divisors, whose sum is σ = 1673699370. Its totient is φ = 1673699368.

The previous prime is 1673699311. The next prime is 1673699389. The reversal of 1673699369 is 9639963761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1528810000 + 144889369 = 39100^2 + 12037^2 .

It is an emirp because it is prime and its reverse (9639963761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1673699369 - 2¹² = 1673695273 is a prime.

It is a super-2 number, since 2×1673699369² = 5602539155581996322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1673699309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836849684 + 836849685.

It is an arithmetic number, because the mean of its divisors is an integer number (836849685).

Almost surely, 2^1673699369 is an apocalyptic number.

It is an amenable number.

1673699369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673699369 is an equidigital number, since it uses as much as digits as its factorization.

1673699369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9920232, while the sum is 59.

The square root of 1673699369 is about 40910.8710369261. The cubic root of 1673699369 is about 1187.2963995022.

The spelling of 1673699369 in words is "one billion, six hundred seventy-three million, six hundred ninety-nine thousand, three hundred sixty-nine".