89356543 has 2 divisors, whose sum is σ = 89356544. Its totient is φ = 89356542.

The previous prime is 89356513. The next prime is 89356571. The reversal of 89356543 is 34565398.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89356543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89356543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89356513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44678271 + 44678272.

It is an arithmetic number, because the mean of its divisors is an integer number (44678272).

Almost surely, 2^89356543 is an apocalyptic number.

89356543 is a deficient number, since it is larger than the sum of its proper divisors (1).

89356543 is an equidigital number, since it uses as much as digits as its factorization.

89356543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 43.

The square root of 89356543 is about 9452.8589855133. The cubic root of 89356543 is about 447.0699225148.

The spelling of 89356543 in words is "eighty-nine million, three hundred fifty-six thousand, five hundred forty-three".