2331986 has 4 divisors (see below), whose sum is σ = 3497982. Its totient is φ = 1165992.

The previous prime is 2331949. The next prime is 2331997. The reversal of 2331986 is 6891332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2146225 + 185761 = 1465^2 + 431^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582995 + ... + 582998.

2^2331986 is an apocalyptic number.

2331986 is a deficient number, since it is larger than the sum of its proper divisors (1165996).

2331986 is a wasteful number, since it uses less digits than its factorization.

2331986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165995.

The product of its digits is 7776, while the sum is 32.

The square root of 2331986 is about 1527.0841496132. The cubic root of 2331986 is about 132.6097062221.

The spelling of 2331986 in words is "two million, three hundred thirty-one thousand, nine hundred eighty-six".