399705032743 has 2 divisors, whose sum is σ = 399705032744. Its totient is φ = 399705032742.

The previous prime is 399705032731. The next prime is 399705032789. The reversal of 399705032743 is 347230507993.

It is a weak prime.

It is an emirp because it is prime and its reverse (347230507993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 399705032743 - 2¹⁷ = 399704901671 is a prime.

It is a super-2 number, since 2×399705032743² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (399705072743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199852516371 + 199852516372.

It is an arithmetic number, because the mean of its divisors is an integer number (199852516372).

Almost surely, 2^399705032743 is an apocalyptic number.

399705032743 is a deficient number, since it is larger than the sum of its proper divisors (1).

399705032743 is an equidigital number, since it uses as much as digits as its factorization.

399705032743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4286520, while the sum is 52.

The spelling of 399705032743 in words is "three hundred ninety-nine billion, seven hundred five million, thirty-two thousand, seven hundred forty-three".