77127836 has 6 divisors (see below), whose sum is σ = 134973720. Its totient is φ = 38563916.

The previous prime is 77127829. The next prime is 77127857. The reversal of 77127836 is 63872177.

It is a junction number, because it is equal to n+sod(n) for n = 77127793 and 77127802.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9640976 + ... + 9640983.

It is an arithmetic number, because the mean of its divisors is an integer number (22495620).

Almost surely, 2^77127836 is an apocalyptic number.

It is an amenable number.

77127836 is a deficient number, since it is larger than the sum of its proper divisors (57845884).

77127836 is a wasteful number, since it uses less digits than its factorization.

77127836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19281963 (or 19281961 counting only the distinct ones).

The product of its digits is 98784, while the sum is 41.

The square root of 77127836 is about 8782.2454987321. The cubic root of 77127836 is about 425.6673915628.

The spelling of 77127836 in words is "seventy-seven million, one hundred twenty-seven thousand, eight hundred thirty-six".