1289064 has 32 divisors (see below), whose sum is σ = 3683520. Its totient is φ = 368256.

The previous prime is 1289053. The next prime is 1289077. The reversal of 1289064 is 4609821.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3669 + ... + 4004.

It is an arithmetic number, because the mean of its divisors is an integer number (115110).

2^1289064 is an apocalyptic number.

1289064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1289064 is an abundant number, since it is smaller than the sum of its proper divisors (2394456).

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

1289064 is a wasteful number, since it uses less digits than its factorization.

1289064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7689 (or 7685 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1289064 is about 1135.3695433646. The cubic root of 1289064 is about 108.8323883534.

The spelling of 1289064 in words is "one million, two hundred eighty-nine thousand, sixty-four".