1398107 has 2 divisors, whose sum is σ = 1398108. Its totient is φ = 1398106.

The previous prime is 1398091. The next prime is 1398113. The reversal of 1398107 is 7018931.

It is a strong prime.

It is an emirp because it is prime and its reverse (7018931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1398107 - 2⁴ = 1398091 is a prime.

It is a plaindrome in base 4 and base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1398107.

It is not a weakly prime, because it can be changed into another prime (1398127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699053 + 699054.

It is an arithmetic number, because the mean of its divisors is an integer number (699054).

2^1398107 is an apocalyptic number.

1398107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1398107 is an equidigital number, since it uses as much as digits as its factorization.

1398107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1398107 is about 1182.4157475271. The cubic root of 1398107 is about 111.8184505569.

The spelling of 1398107 in words is "one million, three hundred ninety-eight thousand, one hundred seven".