7766361 has 10 divisors (see below), whose sum is σ = 11601722. Its totient is φ = 5177520.

The previous prime is 7766329. The next prime is 7766371. The reversal of 7766361 is 1636677.

It can be written as a sum of positive squares in only one way, i.e., 7733961 + 32400 = 2781^2 + 180^2 .

It is not a de Polignac number, because 7766361 - 2⁵ = 7766329 is a prime.

It is a Duffinian number.

It is a Curzon number.

7766361 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7766321) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 47860 + ... + 48021.

Almost surely, 2^7766361 is an apocalyptic number.

It is an amenable number.

7766361 is a deficient number, since it is larger than the sum of its proper divisors (3835361).

7766361 is an equidigital number, since it uses as much as digits as its factorization.

7766361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95893 (or 95884 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 7766361 is about 2786.8191545201. The cubic root of 7766361 is about 198.0337408064.

The spelling of 7766361 in words is "seven million, seven hundred sixty-six thousand, three hundred sixty-one".