2787672 has 32 divisors (see below), whose sum is σ = 7141680. Its totient is φ = 906240.

The previous prime is 2787649. The next prime is 2787689. The reversal of 2787672 is 2767872.

It is a super-2 number, since 2×2787672² = 15542230359168, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2787672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433 + ... + 2400.

2^2787672 is an apocalyptic number.

It is an amenable number.

2787672 is an abundant number, since it is smaller than the sum of its proper divisors (4354008).

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

2787672 is a wasteful number, since it uses less digits than its factorization.

2787672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883 (or 2879 counting only the distinct ones).

The product of its digits is 65856, while the sum is 39.

The square root of 2787672 is about 1669.6322948482. The cubic root of 2787672 is about 140.7388153151.

The spelling of 2787672 in words is "two million, seven hundred eighty-seven thousand, six hundred seventy-two".