77214165 has 16 divisors (see below), whose sum is σ = 141191808. Its totient is φ = 35297856.

The previous prime is 77214139. The next prime is 77214167. The reversal of 77214165 is 56141277.

It is not a de Polignac number, because 77214165 - 2¹⁵ = 77181397 is a prime.

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 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, 367582 + ... + 367791.

It is an arithmetic number, because the mean of its divisors is an integer number (8824488).

Almost surely, 2^77214165 is an apocalyptic number.

It is an amenable number.

77214165 is a deficient number, since it is larger than the sum of its proper divisors (63977643).

77214165 is a wasteful number, since it uses less digits than its factorization.

77214165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735388.

The product of its digits is 11760, while the sum is 33.

The square root of 77214165 is about 8787.1590972282. The cubic root of 77214165 is about 425.8261485055.

The spelling of 77214165 in words is "seventy-seven million, two hundred fourteen thousand, one hundred sixty-five".