2987836 has 6 divisors (see below), whose sum is σ = 5228720. Its totient is φ = 1493916.

The previous prime is 2987827. The next prime is 2987839. The reversal of 2987836 is 6387892.

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 = 2987792 and 2987801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2987839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373476 + ... + 373483.

2^2987836 is an apocalyptic number.

It is an amenable number.

2987836 is a deficient number, since it is larger than the sum of its proper divisors (2240884).

2987836 is a wasteful number, since it uses less digits than its factorization.

2987836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746963 (or 746961 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 2987836 is about 1728.5357965631. The cubic root of 2987836 is about 144.0297649377.

The spelling of 2987836 in words is "two million, nine hundred eighty-seven thousand, eight hundred thirty-six".