770560 has 80 divisors (see below), whose sum is σ = 2160576. Its totient is φ = 258048.

The previous prime is 770557. The next prime is 770573. The reversal of 770560 is 65077.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17899 + ... + 17941.

2⁷⁷⁰⁵⁶⁰ is an apocalyptic number.

770560 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 770560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1080288).

770560 is an abundant number, since it is smaller than the sum of its proper divisors (1390016).

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

770560 is an equidigital number, since it uses as much as digits as its factorization.

770560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 770560 is about 877.8154703581. The cubic root of 770560 is about 91.6787789321.

The spelling of 770560 in words is "seven hundred seventy thousand, five hundred sixty".