766746 has 20 divisors (see below), whose sum is σ = 1718442. Its totient is φ = 255528.

The previous prime is 766739. The next prime is 766757. The reversal of 766746 is 647667.

It can be written as a sum of positive squares in only one way, i.e., 731025 + 35721 = 855^2 + 189^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 766746.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2205 + ... + 2528.

2⁷⁶⁶⁷⁴⁶ is an apocalyptic number.

766746 is an abundant number, since it is smaller than the sum of its proper divisors (951696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

766746 is a wasteful number, since it uses less digits than its factorization.

766746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4747 (or 4738 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 766746 is about 875.6403371248. The cubic root of 766746 is about 91.5272694857.

The spelling of 766746 in words is "seven hundred sixty-six thousand, seven hundred forty-six".