766898 has 12 divisors (see below), whose sum is σ = 1264830. Its totient is φ = 348480.

The previous prime is 766891. The next prime is 766901. The reversal of 766898 is 898667.

It can be written as a sum of positive squares in only one way, i.e., 543169 + 223729 = 737^2 + 473^2 .

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (766891) by changing a digit.

766898 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 5 ways as a sum of consecutive naturals, for example, 1343 + ... + 1826.

2⁷⁶⁶⁸⁹⁸ is an apocalyptic number.

766898 is a deficient number, since it is larger than the sum of its proper divisors (497932).

766898 is a wasteful number, since it uses less digits than its factorization.

766898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193 (or 3182 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 766898 is about 875.7271264498. The cubic root of 766898 is about 91.5333172189.

Subtracting 766898 from its reverse (898667), we obtain a square (131769 = 363²).

The spelling of 766898 in words is "seven hundred sixty-six thousand, eight hundred ninety-eight".