1049891 has 2 divisors, whose sum is σ = 1049892. Its totient is φ = 1049890.

The previous prime is 1049863. The next prime is 1049897. The reversal of 1049891 is 1989401.

It is a strong prime.

It is an emirp because it is prime and its reverse (1989401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1049891 - 2⁶ = 1049827 is a prime.

It is a super-2 number, since 2×1049891² = 2204542223762, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1049897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 524945 + 524946.

It is an arithmetic number, because the mean of its divisors is an integer number (524946).

2^1049891 is an apocalyptic number.

1049891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1049891 is an equidigital number, since it uses as much as digits as its factorization.

1049891 is an evil number, because the sum of its binary digits is even.

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

The square root of 1049891 is about 1024.6418886616. The cubic root of 1049891 is about 101.6361185057.

The spelling of 1049891 in words is "one million, forty-nine thousand, eight hundred ninety-one".