771867066 has 32 divisors (see below), whose sum is σ = 1595438208. Its totient is φ = 248783360.

The previous prime is 771867053. The next prime is 771867073. The reversal of 771867066 is 660768177.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13915 + ... + 41681.

It is an arithmetic number, because the mean of its divisors is an integer number (49857444).

Almost surely, 2^771867066 is an apocalyptic number.

771867066 is an abundant number, since it is smaller than the sum of its proper divisors (823571142).

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

771867066 is a wasteful number, since it uses less digits than its factorization.

771867066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27926.

The product of its (nonzero) digits is 592704, while the sum is 48.

The square root of 771867066 is about 27782.4956762347. The cubic root of 771867066 is about 917.3058650254.

The spelling of 771867066 in words is "seven hundred seventy-one million, eight hundred sixty-seven thousand, sixty-six".