98721043 has 2 divisors, whose sum is σ = 98721044. Its totient is φ = 98721042.

The previous prime is 98721031. The next prime is 98721053. The reversal of 98721043 is 34012789.

It is a strong prime.

It is an emirp because it is prime and its reverse (34012789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98721043 - 2¹³ = 98712851 is a prime.

It is not a weakly prime, because it can be changed into another prime (98721053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49360521 + 49360522.

It is an arithmetic number, because the mean of its divisors is an integer number (49360522).

Almost surely, 2^98721043 is an apocalyptic number.

98721043 is a deficient number, since it is larger than the sum of its proper divisors (1).

98721043 is an equidigital number, since it uses as much as digits as its factorization.

98721043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 98721043 is about 9935.8463655594. The cubic root of 98721043 is about 462.1715894053.

The spelling of 98721043 in words is "ninety-eight million, seven hundred twenty-one thousand, forty-three".