77654465 has 12 divisors (see below), whose sum is σ = 108399636. Its totient is φ = 53248608.

The previous prime is 77654461. The next prime is 77654483. The reversal of 77654465 is 56445677.

It can be written as a sum of positive squares in 2 ways, for example, as 17172736 + 60481729 = 4144^2 + 7777^2 .

It is not a de Polignac number, because 77654465 - 2² = 77654461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77654461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158234 + ... + 158723.

It is an arithmetic number, because the mean of its divisors is an integer number (9033303).

Almost surely, 2^77654465 is an apocalyptic number.

It is an amenable number.

77654465 is a deficient number, since it is larger than the sum of its proper divisors (30745171).

77654465 is a wasteful number, since it uses less digits than its factorization.

77654465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316976 (or 316969 counting only the distinct ones).

The product of its digits is 705600, while the sum is 44.

The square root of 77654465 is about 8812.1770862824. The cubic root of 77654465 is about 426.6340140892.

The spelling of 77654465 in words is "seventy-seven million, six hundred fifty-four thousand, four hundred sixty-five".