77688467 has 8 divisors (see below), whose sum is σ = 78429936. Its totient is φ = 76950432.

The previous prime is 77688433. The next prime is 77688469. The reversal of 77688467 is 76488677.

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 77688467 - 2⁸ = 77688211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77688469) 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, 68993 + ... + 70109.

It is an arithmetic number, because the mean of its divisors is an integer number (9803742).

Almost surely, 2^77688467 is an apocalyptic number.

77688467 is a deficient number, since it is larger than the sum of its proper divisors (741469).

77688467 is a wasteful number, since it uses less digits than its factorization.

77688467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717.

The product of its digits is 3161088, while the sum is 53.

The square root of 77688467 is about 8814.1061373233. The cubic root of 77688467 is about 426.6962740549.

The spelling of 77688467 in words is "seventy-seven million, six hundred eighty-eight thousand, four hundred sixty-seven".