89438243 has 2 divisors, whose sum is σ = 89438244. Its totient is φ = 89438242.

The previous prime is 89438201. The next prime is 89438249. The reversal of 89438243 is 34283498.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89438243 - 2⁸ = 89437987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89438243.

It is not a weakly prime, because it can be changed into another prime (89438249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44719121 + 44719122.

It is an arithmetic number, because the mean of its divisors is an integer number (44719122).

Almost surely, 2^89438243 is an apocalyptic number.

89438243 is a deficient number, since it is larger than the sum of its proper divisors (1).

89438243 is an equidigital number, since it uses as much as digits as its factorization.

89438243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 41.

The square root of 89438243 is about 9457.1794420958. The cubic root of 89438243 is about 447.2061352089.

The spelling of 89438243 in words is "eighty-nine million, four hundred thirty-eight thousand, two hundred forty-three".