770385 has 64 divisors (see below), whose sum is σ = 1658880. Its totient is φ = 295680.

The previous prime is 770359. The next prime is 770387. The reversal of 770385 is 583077.

It is not a de Polignac number, because 770385 - 2⁵ = 770353 is a prime.

770385 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770387) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26551 + ... + 26579.

It is an arithmetic number, because the mean of its divisors is an integer number (25920).

2⁷⁷⁰³⁸⁵ is an apocalyptic number.

It is an amenable number.

770385 is an abundant number, since it is smaller than the sum of its proper divisors (888495).

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

770385 is a wasteful number, since it uses less digits than its factorization.

770385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 770385 is about 877.7157854340. The cubic root of 770385 is about 91.6718380921.

The spelling of 770385 in words is "seven hundred seventy thousand, three hundred eighty-five".