770550 has 48 divisors (see below), whose sum is σ = 2089152. Its totient is φ = 186400.

The previous prime is 770537. The next prime is 770551. The reversal of 770550 is 55077.

It is a self number, because there is not a number n which added to its sum of digits gives 770550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1417 + ... + 1883.

It is an arithmetic number, because the mean of its divisors is an integer number (43524).

2⁷⁷⁰⁵⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 770550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1044576).

770550 is an abundant number, since it is smaller than the sum of its proper divisors (1318602).

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

770550 is a wasteful number, since it uses less digits than its factorization.

770550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 1225, while the sum is 24.

The square root of 770550 is about 877.8097743817. The cubic root of 770550 is about 91.6783823410.

The spelling of 770550 in words is "seven hundred seventy thousand, five hundred fifty".