1398384047 has 2 divisors, whose sum is σ = 1398384048. Its totient is φ = 1398384046.

The previous prime is 1398383911. The next prime is 1398384067. The reversal of 1398384047 is 7404838931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1398384047 - 2¹⁸ = 1398121903 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1398383992 and 1398384010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1398384067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699192023 + 699192024.

It is an arithmetic number, because the mean of its divisors is an integer number (699192024).

Almost surely, 2^1398384047 is an apocalyptic number.

1398384047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1398384047 is an equidigital number, since it uses as much as digits as its factorization.

1398384047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 1398384047 is about 37394.9735526046. The cubic root of 1398384047 is about 1118.2583600026.

The spelling of 1398384047 in words is "one billion, three hundred ninety-eight million, three hundred eighty-four thousand, forty-seven".