77299216 has 30 divisors (see below), whose sum is σ = 153968010. Its totient is φ = 37594368.

The previous prime is 77299199. The next prime is 77299237. The reversal of 77299216 is 61299277.

It can be written as a sum of positive squares in 3 ways, for example, as 25401600 + 51897616 = 5040^2 + 7204^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 20140 + ... + 23668.

It is an arithmetic number, because the mean of its divisors is an integer number (5132267).

Almost surely, 2^77299216 is an apocalyptic number.

It is an amenable number.

77299216 is a deficient number, since it is larger than the sum of its proper divisors (76668794).

77299216 is a wasteful number, since it uses less digits than its factorization.

77299216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3611 (or 3568 counting only the distinct ones).

The product of its digits is 95256, while the sum is 43.

The square root of 77299216 is about 8791.9972702453. The cubic root of 77299216 is about 425.9824395621.

The spelling of 77299216 in words is "seventy-seven million, two hundred ninety-nine thousand, two hundred sixteen".