1390863743 has 2 divisors, whose sum is σ = 1390863744. Its totient is φ = 1390863742.

The previous prime is 1390863739. The next prime is 1390863769. The reversal of 1390863743 is 3473680931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1390863743 - 2² = 1390863739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1390863694 and 1390863703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1390863703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695431871 + 695431872.

It is an arithmetic number, because the mean of its divisors is an integer number (695431872).

Almost surely, 2^1390863743 is an apocalyptic number.

1390863743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1390863743 is an equidigital number, since it uses as much as digits as its factorization.

1390863743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 1390863743 is about 37294.2856614790. The cubic root of 1390863743 is about 1116.2501459947.

The spelling of 1390863743 in words is "one billion, three hundred ninety million, eight hundred sixty-three thousand, seven hundred forty-three".