1289802 has 8 divisors (see below), whose sum is σ = 2579616. Its totient is φ = 429932.

The previous prime is 1289801. The next prime is 1289803. The reversal of 1289802 is 2089821.

It is an interprime number because it is at equal distance from previous prime (1289801) and next prime (1289803).

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

1289802 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1289802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1289801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107478 + ... + 107489.

It is an arithmetic number, because the mean of its divisors is an integer number (322452).

2^1289802 is an apocalyptic number.

1289802 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1289802 is a wasteful number, since it uses less digits than its factorization.

1289802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214972.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1289802 is about 1135.6945011754. The cubic root of 1289802 is about 108.8531535442.

The spelling of 1289802 in words is "one million, two hundred eighty-nine thousand, eight hundred two".