1027849 has 4 divisors (see below), whose sum is σ = 1031940. Its totient is φ = 1023760.

The previous prime is 1027841. The next prime is 1027853. The reversal of 1027849 is 9487201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9487201 = 23 ⋅412487.

It can be written as a sum of positive squares in 2 ways, for example, as 480249 + 547600 = 693^2 + 740^2 .

It is a cyclic number.

It is not a de Polignac number, because 1027849 - 2³ = 1027841 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1027849.

It is not an unprimeable number, because it can be changed into a prime (1027841) 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, 1642 + ... + 2179.

It is an arithmetic number, because the mean of its divisors is an integer number (257985).

2^1027849 is an apocalyptic number.

It is an amenable number.

1027849 is a deficient number, since it is larger than the sum of its proper divisors (4091).

1027849 is an equidigital number, since it uses as much as digits as its factorization.

1027849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1027849 is about 1013.8288810248. The cubic root of 1027849 is about 100.9198134909.

The spelling of 1027849 in words is "one million, twenty-seven thousand, eight hundred forty-nine".