89430871 has 2 divisors, whose sum is σ = 89430872. Its totient is φ = 89430870.

The previous prime is 89430857. The next prime is 89430893. The reversal of 89430871 is 17803498.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89430871 - 2¹⁷ = 89299799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89430821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44715435 + 44715436.

It is an arithmetic number, because the mean of its divisors is an integer number (44715436).

Almost surely, 2^89430871 is an apocalyptic number.

89430871 is a deficient number, since it is larger than the sum of its proper divisors (1).

89430871 is an equidigital number, since it uses as much as digits as its factorization.

89430871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 89430871 is about 9456.7896772636. The cubic root of 89430871 is about 447.1938477946.

The spelling of 89430871 in words is "eighty-nine million, four hundred thirty thousand, eight hundred seventy-one".