766418 has 8 divisors (see below), whose sum is σ = 1180812. Its totient is φ = 372816.

The previous prime is 766399. The next prime is 766421. The reversal of 766418 is 814667.

It can be written as a sum of positive squares in 2 ways, for example, as 727609 + 38809 = 853^2 + 197^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 5105 + ... + 5252.

2⁷⁶⁶⁴¹⁸ is an apocalyptic number.

766418 is a deficient number, since it is larger than the sum of its proper divisors (414394).

766418 is a wasteful number, since it uses less digits than its factorization.

766418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10396.

The product of its digits is 8064, while the sum is 32.

The square root of 766418 is about 875.4530255816. The cubic root of 766418 is about 91.5142163902.

The spelling of 766418 in words is "seven hundred sixty-six thousand, four hundred eighteen".