766761061 has 4 divisors (see below), whose sum is σ = 836466624. Its totient is φ = 697055500.

The previous prime is 766761053. The next prime is 766761139. The reversal of 766761061 is 160167667.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 766761061 - 2³ = 766761053 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766761001) 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 3 ways as a sum of consecutive naturals, for example, 34852765 + ... + 34852786.

It is an arithmetic number, because the mean of its divisors is an integer number (209116656).

Almost surely, 2^766761061 is an apocalyptic number.

It is an amenable number.

766761061 is a deficient number, since it is larger than the sum of its proper divisors (69705563).

766761061 is a wasteful number, since it uses less digits than its factorization.

766761061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69705562.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 766761061 is about 27690.4507186142. The cubic root of 766761061 is about 915.2786876419.

The spelling of 766761061 in words is "seven hundred sixty-six million, seven hundred sixty-one thousand, sixty-one".