766730 has 8 divisors (see below), whose sum is σ = 1380132. Its totient is φ = 306688.

The previous prime is 766721. The next prime is 766739. The reversal of 766730 is 37667.

766730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (766721) and next prime (766739).

It can be written as a sum of positive squares in 2 ways, for example, as 677329 + 89401 = 823^2 + 299^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 766693 and 766702.

It is not an unprimeable number, because it can be changed into a prime (766739) by changing a digit.

766730 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38327 + ... + 38346.

2⁷⁶⁶⁷³⁰ is an apocalyptic number.

766730 is a deficient number, since it is larger than the sum of its proper divisors (613402).

766730 is a wasteful number, since it uses less digits than its factorization.

766730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76680.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 766730 is about 875.6312009060. The cubic root of 766730 is about 91.5266328357.

The spelling of 766730 in words is "seven hundred sixty-six thousand, seven hundred thirty".