77369616 has 45 divisors (see below), whose sum is σ = 216823269. Its totient is φ = 25754688.

The previous prime is 77369609. The next prime is 77369639. The reversal of 77369616 is 61696377.

The square root of 77369616 is 8796.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 75690000 + 1679616 = 8700^2 + 1296^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 105186 + ... + 105918.

Almost surely, 2^77369616 is an apocalyptic number.

77369616 is the 8796-th square number.

It is an amenable number.

77369616 is an abundant number, since it is smaller than the sum of its proper divisors (139453653).

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

77369616 is an equidigital number, since it uses as much as digits as its factorization.

77369616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480 (or 738 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The cubic root of 77369616 is about 426.1117210120. Note that the first 3 decimals are identical.

The spelling of 77369616 in words is "seventy-seven million, three hundred sixty-nine thousand, six hundred sixteen".