77043064 has 16 divisors (see below), whose sum is σ = 165092400. Its totient is φ = 33018432.

The previous prime is 77043041. The next prime is 77043067. The reversal of 77043064 is 46034077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77043067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 687829 + ... + 687940.

It is an arithmetic number, because the mean of its divisors is an integer number (10318275).

Almost surely, 2^77043064 is an apocalyptic number.

It is an amenable number.

77043064 is an abundant number, since it is smaller than the sum of its proper divisors (88049336).

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

77043064 is a wasteful number, since it uses less digits than its factorization.

77043064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375782 (or 1375778 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 77043064 is about 8777.4178435346. The cubic root of 77043064 is about 425.5113825851.

It can be divided in two parts, 770 and 43064, that added together give a palindrome (43834).

The spelling of 77043064 in words is "seventy-seven million, forty-three thousand, sixty-four".