89923667 has 2 divisors, whose sum is σ = 89923668. Its totient is φ = 89923666.

The previous prime is 89923661. The next prime is 89923679. The reversal of 89923667 is 76632998.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89923667 - 2⁴ = 89923651 is a prime.

It is not a weakly prime, because it can be changed into another prime (89923661) by changing a digit.

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, 44961833 + 44961834.

It is an arithmetic number, because the mean of its divisors is an integer number (44961834).

Almost surely, 2^89923667 is an apocalyptic number.

89923667 is a deficient number, since it is larger than the sum of its proper divisors (1).

89923667 is an equidigital number, since it uses as much as digits as its factorization.

89923667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 50.

The square root of 89923667 is about 9482.8090247563. The cubic root of 89923667 is about 448.0137428687.

The spelling of 89923667 in words is "eighty-nine million, nine hundred twenty-three thousand, six hundred sixty-seven".