1246989 has 16 divisors (see below), whose sum is σ = 1774080. Its totient is φ = 776880.

The previous prime is 1246963. The next prime is 1246997. The reversal of 1246989 is 9896421.

It is not a de Polignac number, because 1246989 - 2⁸ = 1246733 is a prime.

It is a super-2 number, since 2×1246989² = 3109963132242, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1246919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7384 + ... + 7550.

It is an arithmetic number, because the mean of its divisors is an integer number (110880).

2^1246989 is an apocalyptic number.

1246989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1246989 is a deficient number, since it is larger than the sum of its proper divisors (527091).

1246989 is a wasteful number, since it uses less digits than its factorization.

1246989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320.

The product of its digits is 31104, while the sum is 39.

The square root of 1246989 is about 1116.6866167372. The cubic root of 1246989 is about 107.6351715887.

The spelling of 1246989 in words is "one million, two hundred forty-six thousand, nine hundred eighty-nine".