1283716 has 36 divisors (see below), whose sum is σ = 2731008. Its totient is φ = 517104.

The previous prime is 1283707. The next prime is 1283717. The reversal of 1283716 is 6173821.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10045 + ... + 10171.

2^1283716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1283716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1365504).

1283716 is an abundant number, since it is smaller than the sum of its proper divisors (1447292).

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

1283716 is a wasteful number, since it uses less digits than its factorization.

1283716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 155 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 1283716 is about 1133.0119152065. The cubic root of 1283716 is about 108.6816737317.

It can be divided in two parts, 128 and 3716, that added together give a square (3844 = 62²).

The spelling of 1283716 in words is "one million, two hundred eighty-three thousand, seven hundred sixteen".