1283969 has 2 divisors, whose sum is σ = 1283970. Its totient is φ = 1283968.

The previous prime is 1283957. The next prime is 1283981. The reversal of 1283969 is 9693821.

It is a balanced prime because it is at equal distance from previous prime (1283957) and next prime (1283981).

It can be written as a sum of positive squares in only one way, i.e., 1181569 + 102400 = 1087^2 + 320^2 .

It is an emirp because it is prime and its reverse (9693821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1283969 - 2¹⁶ = 1218433 is a prime.

It is a super-2 number, since 2×1283969² = 3297152785922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1283939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641984 + 641985.

It is an arithmetic number, because the mean of its divisors is an integer number (641985).

2^1283969 is an apocalyptic number.

It is an amenable number.

1283969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283969 is an equidigital number, since it uses as much as digits as its factorization.

1283969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 38.

The square root of 1283969 is about 1133.1235590173. The cubic root of 1283969 is about 108.6888130723.

The spelling of 1283969 in words is "one million, two hundred eighty-three thousand, nine hundred sixty-nine".