1283399 has 8 divisors (see below), whose sum is σ = 1391040. Its totient is φ = 1177056.

The previous prime is 1283389. The next prime is 1283417. The reversal of 1283399 is 9933821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1283399 - 2⁴ = 1283383 is a prime.

It is a super-2 number, since 2×1283399² = 3294225986402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3314 + ... + 3680.

It is an arithmetic number, because the mean of its divisors is an integer number (173880).

2^1283399 is an apocalyptic number.

1283399 is a deficient number, since it is larger than the sum of its proper divisors (107641).

1283399 is a wasteful number, since it uses less digits than its factorization.

1283399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649.

The product of its digits is 11664, while the sum is 35.

The square root of 1283399 is about 1132.8720139539. The cubic root of 1283399 is about 108.6727270678.

The spelling of 1283399 in words is "one million, two hundred eighty-three thousand, three hundred ninety-nine".