9877667 has 2 divisors, whose sum is σ = 9877668. Its totient is φ = 9877666.

The previous prime is 9877643. The next prime is 9877687. The reversal of 9877667 is 7667789.

9877667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9877667 is a prime.

It is not a weakly prime, because it can be changed into another prime (9877627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4938833 + 4938834.

It is an arithmetic number, because the mean of its divisors is an integer number (4938834).

Almost surely, 2^9877667 is an apocalyptic number.

9877667 is a deficient number, since it is larger than the sum of its proper divisors (1).

9877667 is an equidigital number, since it uses as much as digits as its factorization.

9877667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 889056, while the sum is 50.

The square root of 9877667 is about 3142.8755941017. The cubic root of 9877667 is about 214.5613338262.

The spelling of 9877667 in words is "nine million, eight hundred seventy-seven thousand, six hundred sixty-seven".