1049869 has 4 divisors (see below), whose sum is σ = 1111644. Its totient is φ = 988096.

The previous prime is 1049863. The next prime is 1049891. The reversal of 1049869 is 9689401.

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 469225 + 580644 = 685^2 + 762^2 .

It is a cyclic number.

It is not a de Polignac number, because 1049869 - 2³ = 1049861 is a prime.

It is a super-2 number, since 2×1049869² = 2204449834322, which contains 22 as substring.

It is a Duffinian number.

1049869 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1049861) 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, 30862 + ... + 30895.

It is an arithmetic number, because the mean of its divisors is an integer number (277911).

2^1049869 is an apocalyptic number.

It is an amenable number.

1049869 is a deficient number, since it is larger than the sum of its proper divisors (61775).

1049869 is an equidigital number, since it uses as much as digits as its factorization.

1049869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61774.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1049869 is about 1024.6311531473. The cubic root of 1049869 is about 101.6354085875.

The spelling of 1049869 in words is "one million, forty-nine thousand, eight hundred sixty-nine".