98220389 has 2 divisors, whose sum is σ = 98220390. Its totient is φ = 98220388.

The previous prime is 98220371. The next prime is 98220439. The reversal of 98220389 is 98302289.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55383364 + 42837025 = 7442^2 + 6545^2 .

It is an emirp because it is prime and its reverse (98302289) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98220389 is a prime.

It is a super-3 number, since 3×98220389³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98220349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49110194 + 49110195.

It is an arithmetic number, because the mean of its divisors is an integer number (49110195).

Almost surely, 2^98220389 is an apocalyptic number.

It is an amenable number.

98220389 is a deficient number, since it is larger than the sum of its proper divisors (1).

98220389 is an equidigital number, since it uses as much as digits as its factorization.

98220389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 98220389 is about 9910.6200108772. The cubic root of 98220389 is about 461.3889791074.

The spelling of 98220389 in words is "ninety-eight million, two hundred twenty thousand, three hundred eighty-nine".