1398076847 has 2 divisors, whose sum is σ = 1398076848. Its totient is φ = 1398076846.

The previous prime is 1398076789. The next prime is 1398076861. The reversal of 1398076847 is 7486708931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1398076847 - 2²⁴ = 1381299631 is a prime.

It is a super-2 number, since 2×1398076847² = 3909237740234922818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1398076247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699038423 + 699038424.

It is an arithmetic number, because the mean of its divisors is an integer number (699038424).

Almost surely, 2^1398076847 is an apocalyptic number.

1398076847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1398076847 is an equidigital number, since it uses as much as digits as its factorization.

1398076847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The square root of 1398076847 is about 37390.8658230857. The cubic root of 1398076847 is about 1118.1764668756.

The spelling of 1398076847 in words is "one billion, three hundred ninety-eight million, seventy-six thousand, eight hundred forty-seven".