2087849 has 4 divisors (see below), whose sum is σ = 2090964. Its totient is φ = 2084736.

The previous prime is 2087837. The next prime is 2087857. The reversal of 2087849 is 9487802.

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 1000000 + 1087849 = 1000^2 + 1043^2 .

It is a cyclic number.

It is not a de Polignac number, because 2087849 - 2⁸ = 2087593 is a prime.

It is a super-2 number, since 2×2087849² = 8718226893602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2087809) 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, 92 + ... + 2045.

It is an arithmetic number, because the mean of its divisors is an integer number (522741).

2^2087849 is an apocalyptic number.

It is an amenable number.

2087849 is a deficient number, since it is larger than the sum of its proper divisors (3115).

2087849 is an equidigital number, since it uses as much as digits as its factorization.

2087849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 2087849 is about 1444.9390990627. The cubic root of 2087849 is about 127.8104494204.

The spelling of 2087849 in words is "two million, eighty-seven thousand, eight hundred forty-nine".