1683333349 has 2 divisors, whose sum is σ = 1683333350. Its totient is φ = 1683333348.

The previous prime is 1683333347. The next prime is 1683333373. The reversal of 1683333349 is 9433333861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1373221249 + 310112100 = 37057^2 + 17610^2 .

It is a cyclic number.

It is not a de Polignac number, because 1683333349 - 2¹ = 1683333347 is a prime.

It is a super-2 number, since 2×1683333349² = 5667222327711111602, which contains 22 as substring.

Together with 1683333347, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1683333347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 841666674 + 841666675.

It is an arithmetic number, because the mean of its divisors is an integer number (841666675).

Almost surely, 2^1683333349 is an apocalyptic number.

It is an amenable number.

1683333349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1683333349 is an equidigital number, since it uses as much as digits as its factorization.

1683333349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 43.

The square root of 1683333349 is about 41028.4456078950. The cubic root of 1683333349 is about 1189.5701078826.

The spelling of 1683333349 in words is "one billion, six hundred eighty-three million, three hundred thirty-three thousand, three hundred forty-nine".