8433940313 has 2 divisors, whose sum is σ = 8433940314. Its totient is φ = 8433940312.

The previous prime is 8433940309. The next prime is 8433940327. The reversal of 8433940313 is 3130493348.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6621565129 + 1812375184 = 81373^2 + 42572^2 .

It is a cyclic number.

It is not a de Polignac number, because 8433940313 - 2² = 8433940309 is a prime.

It is a super-2 number, since 2×8433940313² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8433940303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4216970156 + 4216970157.

It is an arithmetic number, because the mean of its divisors is an integer number (4216970157).

Almost surely, 2^8433940313 is an apocalyptic number.

It is an amenable number.

8433940313 is a deficient number, since it is larger than the sum of its proper divisors (1).

8433940313 is an equidigital number, since it uses as much as digits as its factorization.

8433940313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 8433940313 is about 91836.4868284932. The cubic root of 8433940313 is about 2035.5268765573.

The spelling of 8433940313 in words is "eight billion, four hundred thirty-three million, nine hundred forty thousand, three hundred thirteen".