773920 has 48 divisors (see below), whose sum is σ = 2092608. Its totient is φ = 264960.

The previous prime is 773909. The next prime is 773933. The reversal of 773920 is 29377.

It is a happy number.

773920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an Ulam number.

It is an unprimeable number.

773920 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, 775 + ... + 1465.

It is an arithmetic number, because the mean of its divisors is an integer number (43596).

2⁷⁷³⁹²⁰ is an apocalyptic number.

773920 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 773920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1046304).

773920 is an abundant number, since it is smaller than the sum of its proper divisors (1318688).

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

773920 is a wasteful number, since it uses less digits than its factorization.

773920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 773920 is about 879.7272304527. The cubic root of 773920 is about 91.8118397559.

The spelling of 773920 in words is "seven hundred seventy-three thousand, nine hundred twenty".