7766057 has 6 divisors (see below), whose sum is σ = 8409582. Its totient is φ = 7168512.

The previous prime is 7766053. The next prime is 7766071. The reversal of 7766057 is 7506677.

7766057 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 87616 + 7678441 = 296^2 + 2771^2 .

It is not a de Polignac number, because 7766057 - 2² = 7766053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7766057.

It is not an unprimeable number, because it can be changed into a prime (7766053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22808 + ... + 23145.

It is an arithmetic number, because the mean of its divisors is an integer number (1401597).

Almost surely, 2^7766057 is an apocalyptic number.

It is an amenable number.

7766057 is a deficient number, since it is larger than the sum of its proper divisors (643525).

7766057 is a wasteful number, since it uses less digits than its factorization.

7766057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45979 (or 45966 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 38.

The square root of 7766057 is about 2786.7646115164. The cubic root of 7766057 is about 198.0311568832.

The spelling of 7766057 in words is "seven million, seven hundred sixty-six thousand, fifty-seven".