2887722 has 24 divisors (see below), whose sum is σ = 6625476. Its totient is φ = 905856.

The previous prime is 2887721. The next prime is 2887741. The reversal of 2887722 is 2277882.

It can be written as a sum of positive squares in 2 ways, for example, as 2792241 + 95481 = 1671^2 + 309^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2887721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4413 + ... + 5024.

2^2887722 is an apocalyptic number.

2887722 is an abundant number, since it is smaller than the sum of its proper divisors (3737754).

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

2887722 is a wasteful number, since it uses less digits than its factorization.

2887722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9462 (or 9459 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 2887722 is about 1699.3298679185. The cubic root of 2887722 is about 142.4027776359.

The spelling of 2887722 in words is "two million, eight hundred eighty-seven thousand, seven hundred twenty-two".