773680 has 40 divisors (see below), whose sum is σ = 1897200. Its totient is φ = 292608.

The previous prime is 773659. The next prime is 773681. The reversal of 773680 is 86377.

773680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (773681) by changing a digit.

773680 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 7 ways as a sum of consecutive naturals, for example, 1266 + ... + 1774.

It is an arithmetic number, because the mean of its divisors is an integer number (47430).

2⁷⁷³⁶⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 773680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (948600).

773680 is an abundant number, since it is smaller than the sum of its proper divisors (1123520).

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

773680 is a wasteful number, since it uses less digits than its factorization.

773680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 773680 is about 879.5908139584. The cubic root of 773680 is about 91.8023481979.

The spelling of 773680 in words is "seven hundred seventy-three thousand, six hundred eighty".