889677667 has 2 divisors, whose sum is σ = 889677668. Its totient is φ = 889677666.

The previous prime is 889677661. The next prime is 889677671. The reversal of 889677667 is 766776988.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-889677667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 889677599 and 889677608.

It is not a weakly prime, because it can be changed into another prime (889677661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444838833 + 444838834.

It is an arithmetic number, because the mean of its divisors is an integer number (444838834).

Almost surely, 2^889677667 is an apocalyptic number.

889677667 is a deficient number, since it is larger than the sum of its proper divisors (1).

889677667 is an equidigital number, since it uses as much as digits as its factorization.

889677667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42674688, while the sum is 64.

The square root of 889677667 is about 29827.4649777684. The cubic root of 889677667 is about 961.7840331784.

The spelling of 889677667 in words is "eight hundred eighty-nine million, six hundred seventy-seven thousand, six hundred sixty-seven".