2787488 has 24 divisors (see below), whose sum is σ = 5987520. Its totient is φ = 1266880.

The previous prime is 2787481. The next prime is 2787497. The reversal of 2787488 is 8847872.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2787481) 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 3 ways as a sum of consecutive naturals, for example, 3608 + ... + 4311.

It is an arithmetic number, because the mean of its divisors is an integer number (249480).

2^2787488 is an apocalyptic number.

It is an amenable number.

2787488 is an abundant number, since it is smaller than the sum of its proper divisors (3200032).

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

2787488 is a wasteful number, since it uses less digits than its factorization.

2787488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7940 (or 7932 counting only the distinct ones).

The product of its digits is 200704, while the sum is 44.

The square root of 2787488 is about 1669.5771919860. The cubic root of 2787488 is about 140.7357187634.

The spelling of 2787488 in words is "two million, seven hundred eighty-seven thousand, four hundred eighty-eight".