89947667 has 2 divisors, whose sum is σ = 89947668. Its totient is φ = 89947666.

The previous prime is 89947651. The next prime is 89947673. The reversal of 89947667 is 76674998.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89947667 - 2⁴ = 89947651 is a prime.

It is not a weakly prime, because it can be changed into another prime (89947967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44973833 + 44973834.

It is an arithmetic number, because the mean of its divisors is an integer number (44973834).

Almost surely, 2^89947667 is an apocalyptic number.

89947667 is a deficient number, since it is larger than the sum of its proper divisors (1).

89947667 is an equidigital number, since it uses as much as digits as its factorization.

89947667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 56.

The square root of 89947667 is about 9484.0743881520. The cubic root of 89947667 is about 448.0535965719.

It can be divided in two parts, 8994 and 7667, that added together give a palindrome (16661).

The spelling of 89947667 in words is "eighty-nine million, nine hundred forty-seven thousand, six hundred sixty-seven".