2787422 has 32 divisors (see below), whose sum is σ = 5015520. Its totient is φ = 1146880.

The previous prime is 2787419. The next prime is 2787443. The reversal of 2787422 is 2247872.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10718 + ... + 10974.

It is an arithmetic number, because the mean of its divisors is an integer number (156735).

2^2787422 is an apocalyptic number.

2787422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2787422 is a deficient number, since it is larger than the sum of its proper divisors (2228098).

2787422 is a wasteful number, since it uses less digits than its factorization.

2787422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316.

The product of its digits is 12544, while the sum is 32.

The square root of 2787422 is about 1669.5574263858. The cubic root of 2787422 is about 140.7346080105.

The spelling of 2787422 in words is "two million, seven hundred eighty-seven thousand, four hundred twenty-two".