770636 has 24 divisors (see below), whose sum is σ = 1430016. Its totient is φ = 362880.

The previous prime is 770611. The next prime is 770639. The reversal of 770636 is 636077.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 770599 and 770608.

It is not an unprimeable number, because it can be changed into a prime (770639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6005 + ... + 6131.

It is an arithmetic number, because the mean of its divisors is an integer number (59584).

2⁷⁷⁰⁶³⁶ is an apocalyptic number.

It is an amenable number.

770636 is a deficient number, since it is larger than the sum of its proper divisors (659380).

770636 is a wasteful number, since it uses less digits than its factorization.

770636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 770636 is about 877.8587585711. The cubic root of 770636 is about 91.6817929125.

The spelling of 770636 in words is "seven hundred seventy thousand, six hundred thirty-six".