2787490 has 32 divisors (see below), whose sum is σ = 5598720. Its totient is φ = 993024.

The previous prime is 2787481. The next prime is 2787497. The reversal of 2787490 is 947872.

It is a happy number.

2787490 is nontrivially palindromic in base 16.

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

It is not an unprimeable number, because it can be changed into a prime (2787497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2799 + ... + 3661.

It is an arithmetic number, because the mean of its divisors is an integer number (174960).

2^2787490 is an apocalyptic number.

2787490 is an abundant number, since it is smaller than the sum of its proper divisors (2811230).

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

2787490 is a wasteful number, since it uses less digits than its factorization.

2787490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 2787490 is about 1669.5777909400. The cubic root of 2787490 is about 140.7357524223.

The spelling of 2787490 in words is "two million, seven hundred eighty-seven thousand, four hundred ninety".