77127616 has 14 divisors (see below), whose sum is σ = 153050240. Its totient is φ = 38563776.

The previous prime is 77127613. The next prime is 77127641. The reversal of 77127616 is 61672177.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77127613) 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 as a sum of consecutive naturals, namely, 602496 + ... + 602623.

It is an arithmetic number, because the mean of its divisors is an integer number (10932160).

Almost surely, 2^77127616 is an apocalyptic number.

It is an amenable number.

77127616 is a deficient number, since it is larger than the sum of its proper divisors (75922624).

77127616 is a wasteful number, since it uses less digits than its factorization.

77127616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205131 (or 1205121 counting only the distinct ones).

The product of its digits is 24696, while the sum is 37.

The square root of 77127616 is about 8782.2329734527. The cubic root of 77127616 is about 425.6669868368. Note that the first 3 decimals are identical.

The spelling of 77127616 in words is "seventy-seven million, one hundred twenty-seven thousand, six hundred sixteen".