1283398 has 8 divisors (see below), whose sum is σ = 2038392. Its totient is φ = 603936.

The previous prime is 1283389. The next prime is 1283417. The reversal of 1283398 is 8933821.

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

It is a super-2 number, since 2×1283398² = 3294220852808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 37747 = 1283398 / (1 + 2 + 8 + 3 + 3 + 9 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18840 + ... + 18907.

It is an arithmetic number, because the mean of its divisors is an integer number (254799).

2^1283398 is an apocalyptic number.

1283398 is a deficient number, since it is larger than the sum of its proper divisors (754994).

1283398 is a wasteful number, since it uses less digits than its factorization.

1283398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37766.

The product of its digits is 10368, while the sum is 34.

The square root of 1283398 is about 1132.8715725977. The cubic root of 1283398 is about 108.6726988425.

It can be divided in two parts, 1283 and 398, that added together give a square (1681 = 41²).

The spelling of 1283398 in words is "one million, two hundred eighty-three thousand, three hundred ninety-eight".