89107987 has 2 divisors, whose sum is σ = 89107988. Its totient is φ = 89107986.

The previous prime is 89107979. The next prime is 89108009. The reversal of 89107987 is 78970198.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89107987 - 2³ = 89107979 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89107987.

It is not a weakly prime, because it can be changed into another prime (89107937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44553993 + 44553994.

It is an arithmetic number, because the mean of its divisors is an integer number (44553994).

Almost surely, 2^89107987 is an apocalyptic number.

89107987 is a deficient number, since it is larger than the sum of its proper divisors (1).

89107987 is an equidigital number, since it uses as much as digits as its factorization.

89107987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 49.

The square root of 89107987 is about 9439.7026965895. The cubic root of 89107987 is about 446.6550112674.

The spelling of 89107987 in words is "eighty-nine million, one hundred seven thousand, nine hundred eighty-seven".