743849 has 2 divisors, whose sum is σ = 743850. Its totient is φ = 743848.

The previous prime is 743837. The next prime is 743851. The reversal of 743849 is 948347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 547600 + 196249 = 740^2 + 443^2 .

It is a cyclic number.

It is not a de Polignac number, because 743849 - 2⁴ = 743833 is a prime.

It is a super-2 number, since 2×743849² = 1106622669602, which contains 22 as substring.

Together with 743851, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (743819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371924 + 371925.

It is an arithmetic number, because the mean of its divisors is an integer number (371925).

2⁷⁴³⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

743849 is a deficient number, since it is larger than the sum of its proper divisors (1).

743849 is an equidigital number, since it uses as much as digits as its factorization.

743849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 743849 is about 862.4668109556. The cubic root of 743849 is about 90.6069673197.

The spelling of 743849 in words is "seven hundred forty-three thousand, eight hundred forty-nine".