766796221 has 8 divisors (see below), whose sum is σ = 795409920. Its totient is φ = 738327408.

The previous prime is 766796213. The next prime is 766796249. The reversal of 766796221 is 122697667.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 766796221 - 2³ = 766796213 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 (766796201) 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 7 ways as a sum of consecutive naturals, for example, 25381 + ... + 46666.

It is an arithmetic number, because the mean of its divisors is an integer number (99426240).

Almost surely, 2^766796221 is an apocalyptic number.

It is an amenable number.

766796221 is a deficient number, since it is larger than the sum of its proper divisors (28613699).

766796221 is a wasteful number, since it uses less digits than its factorization.

766796221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72443.

The product of its digits is 381024, while the sum is 46.

The square root of 766796221 is about 27691.0855872427. The cubic root of 766796221 is about 915.2926775311.

The spelling of 766796221 in words is "seven hundred sixty-six million, seven hundred ninety-six thousand, two hundred twenty-one".