766398 has 8 divisors (see below), whose sum is σ = 1532808. Its totient is φ = 255464.

The previous prime is 766393. The next prime is 766399. The reversal of 766398 is 893667.

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

766398 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766393) 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, 63861 + ... + 63872.

It is an arithmetic number, because the mean of its divisors is an integer number (191601).

2⁷⁶⁶³⁹⁸ is an apocalyptic number.

766398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

766398 is a wasteful number, since it uses less digits than its factorization.

766398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127738.

The product of its digits is 54432, while the sum is 39.

The square root of 766398 is about 875.4416028497. The cubic root of 766398 is about 91.5134203493.

The spelling of 766398 in words is "seven hundred sixty-six thousand, three hundred ninety-eight".