2787336990 has 48 divisors (see below), whose sum is σ = 7270303248. Its totient is φ = 740907648.

The previous prime is 2787336967. The next prime is 2787336997. The reversal of 2787336990 is 996337872.

2787336990 is a `hidden beast` number, since 278 + 7 + 3 + 369 + 9 + 0 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2787336997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21304 + ... + 77643.

It is an arithmetic number, because the mean of its divisors is an integer number (151464651).

Almost surely, 2^2787336990 is an apocalyptic number.

2787336990 is an abundant number, since it is smaller than the sum of its proper divisors (4482966258).

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

2787336990 is a wasteful number, since it uses less digits than its factorization.

2787336990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99273 (or 99270 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The square root of 2787336990 is about 52795.2364328450. The cubic root of 2787336990 is about 1407.3317730136.

The spelling of 2787336990 in words is "two billion, seven hundred eighty-seven million, three hundred thirty-six thousand, nine hundred ninety".