766947 has 4 divisors (see below), whose sum is σ = 1022600. Its totient is φ = 511296.

The previous prime is 766943. The next prime is 766957. The reversal of 766947 is 749667.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 766947 - 2² = 766943 is a prime.

It is a D-number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 766947.

It is not an unprimeable number, because it can be changed into a prime (766943) 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, 127822 + ... + 127827.

It is an arithmetic number, because the mean of its divisors is an integer number (255650).

2⁷⁶⁶⁹⁴⁷ is an apocalyptic number.

766947 is a deficient number, since it is larger than the sum of its proper divisors (255653).

766947 is a wasteful number, since it uses less digits than its factorization.

766947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255652.

The product of its digits is 63504, while the sum is 39.

The square root of 766947 is about 875.7551027542. The cubic root of 766947 is about 91.5352666468.

The spelling of 766947 in words is "seven hundred sixty-six thousand, nine hundred forty-seven".