2087993 has 2 divisors, whose sum is σ = 2087994. Its totient is φ = 2087992.

The previous prime is 2087983. The next prime is 2087999. The reversal of 2087993 is 3997802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1993744 + 94249 = 1412^2 + 307^2 .

It is a cyclic number.

It is not a de Polignac number, because 2087993 - 2¹⁰ = 2086969 is a prime.

It is not a weakly prime, because it can be changed into another prime (2087999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1043996 + 1043997.

It is an arithmetic number, because the mean of its divisors is an integer number (1043997).

2^2087993 is an apocalyptic number.

It is an amenable number.

2087993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2087993 is an equidigital number, since it uses as much as digits as its factorization.

2087993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 2087993 is about 1444.9889272932. The cubic root of 2087993 is about 127.8133877366.

It can be divided in two parts, 208799 and 3, that added together give a palindrome (208802).

The spelling of 2087993 in words is "two million, eighty-seven thousand, nine hundred ninety-three".