98200981 has 2 divisors, whose sum is σ = 98200982. Its totient is φ = 98200980.

The previous prime is 98200969. The next prime is 98201009. The reversal of 98200981 is 18900289.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58384881 + 39816100 = 7641^2 + 6310^2 .

It is an emirp because it is prime and its reverse (18900289) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98200981 - 2²¹ = 96103829 is a prime.

It is a super-2 number, since 2×98200981² = 19286865338724722, which contains 22 as substring.

It is equal to p_5663818 and since 98200981 and 5663818 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98200981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98200951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49100490 + 49100491.

It is an arithmetic number, because the mean of its divisors is an integer number (49100491).

Almost surely, 2^98200981 is an apocalyptic number.

It is an amenable number.

98200981 is a deficient number, since it is larger than the sum of its proper divisors (1).

98200981 is an equidigital number, since it uses as much as digits as its factorization.

98200981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 98200981 is about 9909.6408108468. The cubic root of 98200981 is about 461.3585874978.

The spelling of 98200981 in words is "ninety-eight million, two hundred thousand, nine hundred eighty-one".