1041989 has 4 divisors (see below), whose sum is σ = 1122156. Its totient is φ = 961824.

The previous prime is 1041983. The next prime is 1041991. The reversal of 1041989 is 9891401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 693889 + 348100 = 833^2 + 590^2 .

It is a cyclic number.

It is not a de Polignac number, because 1041989 - 2¹² = 1037893 is a prime.

It is a super-2 number, since 2×1041989² = 2171482152242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1041983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40064 + ... + 40089.

It is an arithmetic number, because the mean of its divisors is an integer number (280539).

2^1041989 is an apocalyptic number.

It is an amenable number.

1041989 is a deficient number, since it is larger than the sum of its proper divisors (80167).

1041989 is an equidigital number, since it uses as much as digits as its factorization.

1041989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80166.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 1041989 is about 1020.7786243843. The cubic root of 1041989 is about 101.3804881623.

The spelling of 1041989 in words is "one million, forty-one thousand, nine hundred eighty-nine".