98211797 has 2 divisors, whose sum is σ = 98211798. Its totient is φ = 98211796.

The previous prime is 98211787. The next prime is 98211823. The reversal of 98211797 is 79711289.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96550276 + 1661521 = 9826^2 + 1289^2 .

It is a cyclic number.

It is not a de Polignac number, because 98211797 - 2¹² = 98207701 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98211787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49105898 + 49105899.

It is an arithmetic number, because the mean of its divisors is an integer number (49105899).

Almost surely, 2^98211797 is an apocalyptic number.

It is an amenable number.

98211797 is a deficient number, since it is larger than the sum of its proper divisors (1).

98211797 is an equidigital number, since it uses as much as digits as its factorization.

98211797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 44.

The square root of 98211797 is about 9910.1865270034. The cubic root of 98211797 is about 461.3755251130.

The spelling of 98211797 in words is "ninety-eight million, two hundred eleven thousand, seven hundred ninety-seven".