7766001 has 12 divisors (see below), whose sum is σ = 11286912. Its totient is φ = 5145336.

The previous prime is 7765987. The next prime is 7766009. The reversal of 7766001 is 1006677.

It is not a de Polignac number, because 7766001 - 2⁵ = 7765969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7766009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1081 + ... + 4086.

It is an arithmetic number, because the mean of its divisors is an integer number (940576).

Almost surely, 2^7766001 is an apocalyptic number.

It is an amenable number.

7766001 is a deficient number, since it is larger than the sum of its proper divisors (3520911).

7766001 is a wasteful number, since it uses less digits than its factorization.

7766001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5340 (or 5337 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 7766001 is about 2786.7545640045. The cubic root of 7766001 is about 198.0306808900.

The spelling of 7766001 in words is "seven million, seven hundred sixty-six thousand, one".