6787225 has 6 divisors (see below), whose sum is σ = 8416190. Its totient is φ = 5429760.

The previous prime is 6787213. The next prime is 6787273. The reversal of 6787225 is 5227876.

It can be written as a sum of positive squares in 3 ways, for example, as 2039184 + 4748041 = 1428^2 + 2179^2 .

It is not a de Polignac number, because 6787225 - 2¹³ = 6779033 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135720 + ... + 135769.

Almost surely, 2^6787225 is an apocalyptic number.

It is an amenable number.

6787225 is a deficient number, since it is larger than the sum of its proper divisors (1628965).

6787225 is a wasteful number, since it uses less digits than its factorization.

6787225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271499 (or 271494 counting only the distinct ones).

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

The square root of 6787225 is about 2605.2303161141. The cubic root of 6787225 is about 189.3349323605.

The spelling of 6787225 in words is "six million, seven hundred eighty-seven thousand, two hundred twenty-five".