7766425 has 12 divisors (see below), whose sum is σ = 9866556. Its totient is φ = 6060800.

The previous prime is 7766419. The next prime is 7766441. The reversal of 7766425 is 5246677.

It can be written as a sum of positive squares in 6 ways, for example, as 3810304 + 3956121 = 1952^2 + 1989^2 .

It is not a de Polignac number, because 7766425 - 2³ = 7766417 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, 2764 + ... + 4813.

It is an arithmetic number, because the mean of its divisors is an integer number (822213).

Almost surely, 2^7766425 is an apocalyptic number.

It is an amenable number.

7766425 is a deficient number, since it is larger than the sum of its proper divisors (2100131).

7766425 is a wasteful number, since it uses less digits than its factorization.

7766425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7628 (or 7623 counting only the distinct ones).

The product of its digits is 70560, while the sum is 37.

The square root of 7766425 is about 2786.8306371217. The cubic root of 7766425 is about 198.0342847817.

The spelling of 7766425 in words is "seven million, seven hundred sixty-six thousand, four hundred twenty-five".