2987236 has 18 divisors (see below), whose sum is σ = 6081558. Its totient is φ = 1280160.

The previous prime is 2987209. The next prime is 2987251. The reversal of 2987236 is 6327892.

2987236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2822400 + 164836 = 1680^2 + 406^2 .

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2987195 and 2987204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7425 + ... + 7816.

2^2987236 is an apocalyptic number.

It is an amenable number.

2987236 is an abundant number, since it is smaller than the sum of its proper divisors (3094322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2987236 is a wasteful number, since it uses less digits than its factorization.

2987236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15259 (or 15250 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 2987236 is about 1728.3622305524. The cubic root of 2987236 is about 144.0201232166.

It can be divided in two parts, 2987 and 236, that added together give a palindrome (3223).

The spelling of 2987236 in words is "two million, nine hundred eighty-seven thousand, two hundred thirty-six".