1398283 has 2 divisors, whose sum is σ = 1398284. Its totient is φ = 1398282.
The previous prime is 1398281. The next prime is 1398289. The reversal of 1398283 is 3828931.
It is a weak prime.
It is an emirp because it is prime and its reverse (3828931) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1398283 - 21 = 1398281 is a prime.
Together with 1398281, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (1398281) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699141 + 699142.
It is an arithmetic number, because the mean of its divisors is an integer number (699142).
21398283 is an apocalyptic number.
1398283 is a deficient number, since it is larger than the sum of its proper divisors (1).
1398283 is an equidigital number, since it uses as much as digits as its factorization.
1398283 is an evil number, because the sum of its binary digits is even.
The product of its digits is 10368, while the sum is 34.
The square root of 1398283 is about 1182.4901690923. The cubic root of 1398283 is about 111.8231424299.
It can be divided in two parts, 1398 and 283, that added together give a square (1681 = 412).
The spelling of 1398283 in words is "one million, three hundred ninety-eight thousand, two hundred eighty-three".
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