1368398743 has 2 divisors, whose sum is σ = 1368398744. Its totient is φ = 1368398742.

The previous prime is 1368398729. The next prime is 1368398767. The reversal of 1368398743 is 3478938631.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1368398743 - 2¹⁷ = 1368267671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1368398783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684199371 + 684199372.

It is an arithmetic number, because the mean of its divisors is an integer number (684199372).

Almost surely, 2^1368398743 is an apocalyptic number.

1368398743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368398743 is an equidigital number, since it uses as much as digits as its factorization.

1368398743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 52.

The square root of 1368398743 is about 36991.8740130856. The cubic root of 1368398743 is about 1110.2076669596.

The spelling of 1368398743 in words is "one billion, three hundred sixty-eight million, three hundred ninety-eight thousand, seven hundred forty-three".