787225 has 6 divisors (see below), whose sum is σ = 976190. Its totient is φ = 629760.

The previous prime is 787217. The next prime is 787243. The reversal of 787225 is 522787.

It can be written as a sum of positive squares in 3 ways, for example, as 68121 + 719104 = 261^2 + 848^2 .

It is not a de Polignac number, because 787225 - 2³ = 787217 is a prime.

It is an Ulam number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 15720 + ... + 15769.

2⁷⁸⁷²²⁵ is an apocalyptic number.

It is an amenable number.

787225 is a deficient number, since it is larger than the sum of its proper divisors (188965).

787225 is a wasteful number, since it uses less digits than its factorization.

787225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31499 (or 31494 counting only the distinct ones).

The product of its digits is 7840, while the sum is 31.

The square root of 787225 is about 887.2570089889. The cubic root of 787225 is about 92.3349870316.

The spelling of 787225 in words is "seven hundred eighty-seven thousand, two hundred twenty-five".