2087797 has 4 divisors (see below), whose sum is σ = 2159820. Its totient is φ = 2015776.

The previous prime is 2087791. The next prime is 2087801. The reversal of 2087797 is 7977802.

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 1726596 + 361201 = 1314^2 + 601^2 .

It is a cyclic number.

It is not a de Polignac number, because 2087797 - 2⁷ = 2087669 is a prime.

It is a Smith number, since the sum of its digits (40) 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087791) 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, 35968 + ... + 36025.

It is an arithmetic number, because the mean of its divisors is an integer number (539955).

2^2087797 is an apocalyptic number.

It is an amenable number.

2087797 is a deficient number, since it is larger than the sum of its proper divisors (72023).

2087797 is an equidigital number, since it uses as much as digits as its factorization.

2087797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72022.

The product of its (nonzero) digits is 49392, while the sum is 40.

The square root of 2087797 is about 1444.9211051127. The cubic root of 2087797 is about 127.8093883286.

The spelling of 2087797 in words is "two million, eighty-seven thousand, seven hundred ninety-seven".