77214164 has 6 divisors (see below), whose sum is σ = 135124794. Its totient is φ = 38607080.

The previous prime is 77214139. The next prime is 77214167. The reversal of 77214164 is 46141277.

It can be written as a sum of positive squares in only one way, i.e., 51122500 + 26091664 = 7150^2 + 5108^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 77214164.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77214167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9651767 + ... + 9651774.

It is an arithmetic number, because the mean of its divisors is an integer number (22520799).

Almost surely, 2^77214164 is an apocalyptic number.

It is an amenable number.

77214164 is a deficient number, since it is larger than the sum of its proper divisors (57910630).

77214164 is a wasteful number, since it uses less digits than its factorization.

77214164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19303545 (or 19303543 counting only the distinct ones).

The product of its digits is 9408, while the sum is 32.

The square root of 77214164 is about 8787.1590403270. The cubic root of 77214164 is about 425.8261466672.

The spelling of 77214164 in words is "seventy-seven million, two hundred fourteen thousand, one hundred sixty-four".