783401243 has 2 divisors, whose sum is σ = 783401244. Its totient is φ = 783401242.

The previous prime is 783401239. The next prime is 783401299. The reversal of 783401243 is 342104387.

783401243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 783401243 - 2² = 783401239 is a prime.

It is a super-2 number, since 2×783401243² = 1227435015067890098, which contains 22 as substring.

It is a Sophie Germain prime.

It is equal to p_40335791 and since 783401243 and 40335791 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (783481243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391700621 + 391700622.

It is an arithmetic number, because the mean of its divisors is an integer number (391700622).

Almost surely, 2^783401243 is an apocalyptic number.

783401243 is a deficient number, since it is larger than the sum of its proper divisors (1).

783401243 is an equidigital number, since it uses as much as digits as its factorization.

783401243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 783401243 is about 27989.3058684920. The cubic root of 783401243 is about 921.8524595971.

The spelling of 783401243 in words is "seven hundred eighty-three million, four hundred one thousand, two hundred forty-three".