770067820 has 12 divisors (see below), whose sum is σ = 1617142464. Its totient is φ = 308027120.

The previous prime is 770067803. The next prime is 770067833. The reversal of 770067820 is 28760077.

It is a self number, because there is not a number n which added to its sum of digits gives 770067820.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19251676 + ... + 19251715.

It is an arithmetic number, because the mean of its divisors is an integer number (134761872).

Almost surely, 2^770067820 is an apocalyptic number.

It is an amenable number.

770067820 is an abundant number, since it is smaller than the sum of its proper divisors (847074644).

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

770067820 is a wasteful number, since it uses less digits than its factorization.

770067820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38503400 (or 38503398 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 770067820 is about 27750.0958556903. The cubic root of 770067820 is about 916.5925543755.

The spelling of 770067820 in words is "seven hundred seventy million, sixty-seven thousand, eight hundred twenty".