1036891 has 4 divisors (see below), whose sum is σ = 1044000. Its totient is φ = 1029784.

The previous prime is 1036883. The next prime is 1036913. The reversal of 1036891 is 1986301.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1036891 - 2³ = 1036883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1036831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3331 + ... + 3628.

It is an arithmetic number, because the mean of its divisors is an integer number (261000).

2^1036891 is an apocalyptic number.

1036891 is a deficient number, since it is larger than the sum of its proper divisors (7109).

1036891 is an equidigital number, since it uses as much as digits as its factorization.

1036891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7108.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1036891 is about 1018.2784491484. The cubic root of 1036891 is about 101.2148808751.

The spelling of 1036891 in words is "one million, thirty-six thousand, eight hundred ninety-one".