77216027 has 8 divisors (see below), whose sum is σ = 88306176. Its totient is φ = 66140712.

The previous prime is 77216021. The next prime is 77216039. The reversal of 77216027 is 72061277.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77216027 - 2²² = 73021723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77215984 and 77216002.

It is not an unprimeable number, because it can be changed into a prime (77216021) 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 in 7 ways as a sum of consecutive naturals, for example, 11768 + ... + 17114.

It is an arithmetic number, because the mean of its divisors is an integer number (11038272).

Almost surely, 2^77216027 is an apocalyptic number.

77216027 is a deficient number, since it is larger than the sum of its proper divisors (11090149).

77216027 is a wasteful number, since it uses less digits than its factorization.

77216027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7417.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 77216027 is about 8787.2650466456. The cubic root of 77216027 is about 425.8295713745.

The spelling of 77216027 in words is "seventy-seven million, two hundred sixteen thousand, twenty-seven".