7877225 has 12 divisors (see below), whose sum is σ = 9802944. Its totient is φ = 6279120.

The previous prime is 7877203. The next prime is 7877291. The reversal of 7877225 is 5227787.

It is not a de Polignac number, because 7877225 - 2⁸ = 7876969 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 11852 + ... + 12498.

It is an arithmetic number, because the mean of its divisors is an integer number (816912).

Almost surely, 2^7877225 is an apocalyptic number.

It is an amenable number.

7877225 is a deficient number, since it is larger than the sum of its proper divisors (1925719).

7877225 is a wasteful number, since it uses less digits than its factorization.

7877225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144 (or 1139 counting only the distinct ones).

The product of its digits is 54880, while the sum is 38.

The square root of 7877225 is about 2806.6394495909. The cubic root of 7877225 is about 198.9715959898.

The spelling of 7877225 in words is "seven million, eight hundred seventy-seven thousand, two hundred twenty-five".