766056709 has 4 divisors (see below), whose sum is σ = 835698240. Its totient is φ = 696415180.

The previous prime is 766056679. The next prime is 766056749. The reversal of 766056709 is 907650667.

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 766056709 - 2⁷ = 766056581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766056749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34820749 + ... + 34820770.

It is an arithmetic number, because the mean of its divisors is an integer number (208924560).

Almost surely, 2^766056709 is an apocalyptic number.

It is an amenable number.

766056709 is a deficient number, since it is larger than the sum of its proper divisors (69641531).

766056709 is a wasteful number, since it uses less digits than its factorization.

766056709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69641530.

The product of its (nonzero) digits is 476280, while the sum is 46.

The square root of 766056709 is about 27677.7294769640. The cubic root of 766056709 is about 914.9983413429.

The spelling of 766056709 in words is "seven hundred sixty-six million, fifty-six thousand, seven hundred nine".