770656 has 12 divisors (see below), whose sum is σ = 1517292. Its totient is φ = 385312.

The previous prime is 770647. The next prime is 770657. The reversal of 770656 is 656077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12010 + ... + 12073.

It is an arithmetic number, because the mean of its divisors is an integer number (126441).

2⁷⁷⁰⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

770656 is a deficient number, since it is larger than the sum of its proper divisors (746636).

770656 is a wasteful number, since it uses less digits than its factorization.

770656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24093 (or 24085 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 770656 is about 877.8701498513. The cubic root of 770656 is about 91.6825860323.

The spelling of 770656 in words is "seven hundred seventy thousand, six hundred fifty-six".