89470643 has 8 divisors (see below), whose sum is σ = 95066640. Its totient is φ = 84203040.

The previous prime is 89470637. The next prime is 89470669. The reversal of 89470643 is 34607498.

It is not a de Polignac number, because 89470643 - 2⁴ = 89470627 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89470643.

It is not an unprimeable number, because it can be changed into a prime (89470673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4193 + ... + 14018.

It is an arithmetic number, because the mean of its divisors is an integer number (11883330).

Almost surely, 2^89470643 is an apocalyptic number.

89470643 is a deficient number, since it is larger than the sum of its proper divisors (5595997).

89470643 is an equidigital number, since it uses as much as digits as its factorization.

89470643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18262 (or 18228 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 89470643 is about 9458.8922712969. The cubic root of 89470643 is about 447.2601304909.

The spelling of 89470643 in words is "eighty-nine million, four hundred seventy thousand, six hundred forty-three".