1283898 has 48 divisors (see below), whose sum is σ = 3266784. Its totient is φ = 332640.

The previous prime is 1283897. The next prime is 1283903. The reversal of 1283898 is 8983821.

It is not an unprimeable number, because it can be changed into a prime (1283897) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3036 + ... + 3432.

It is an arithmetic number, because the mean of its divisors is an integer number (68058).

2^1283898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1283898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1633392).

1283898 is an abundant number, since it is smaller than the sum of its proper divisors (1982886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1283898 is a wasteful number, since it uses less digits than its factorization.

1283898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 420 counting only the distinct ones).

The product of its digits is 27648, while the sum is 39.

The square root of 1283898 is about 1133.0922292559. The cubic root of 1283898 is about 108.6868096366.

The spelling of 1283898 in words is "one million, two hundred eighty-three thousand, eight hundred ninety-eight".