2787625 has 16 divisors (see below), whose sum is σ = 3603600. Its totient is φ = 2150400.

The previous prime is 2787619. The next prime is 2787649. The reversal of 2787625 is 5267872.

It can be written as a sum of positive squares in 8 ways, for example, as 1016064 + 1771561 = 1008^2 + 1331^2 .

It is not a de Polignac number, because 2787625 - 2⁵ = 2787593 is a prime.

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, 3241 + ... + 4009.

It is an arithmetic number, because the mean of its divisors is an integer number (225225).

2^2787625 is an apocalyptic number.

2787625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2787625 is a deficient number, since it is larger than the sum of its proper divisors (815975).

2787625 is an equidigital number, since it uses as much as digits as its factorization.

2787625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813 (or 803 counting only the distinct ones).

The product of its digits is 47040, while the sum is 37.

The square root of 2787625 is about 1669.6182198335. The cubic root of 2787625 is about 140.7380243611.

The spelling of 2787625 in words is "two million, seven hundred eighty-seven thousand, six hundred twenty-five".