1289367 has 6 divisors (see below), whose sum is σ = 1862432. Its totient is φ = 859572.

The previous prime is 1289363. The next prime is 1289371. The reversal of 1289367 is 7639821.

It is an interprime number because it is at equal distance from previous prime (1289363) and next prime (1289371).

It is not a de Polignac number, because 1289367 - 2² = 1289363 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1289363) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71623 + ... + 71640.

2^1289367 is an apocalyptic number.

1289367 is a deficient number, since it is larger than the sum of its proper divisors (573065).

1289367 is a wasteful number, since it uses less digits than its factorization.

1289367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143269 (or 143266 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 1289367 is about 1135.5029722550. The cubic root of 1289367 is about 108.8409148580.

The spelling of 1289367 in words is "one million, two hundred eighty-nine thousand, three hundred sixty-seven".