98191213 has 2 divisors, whose sum is σ = 98191214. Its totient is φ = 98191212.

The previous prime is 98191207. The next prime is 98191243. The reversal of 98191213 is 31219189.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97653924 + 537289 = 9882^2 + 733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98191213 is a prime.

It is a super-2 number, since 2×98191213² = 19283028620822738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98191243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49095606 + 49095607.

It is an arithmetic number, because the mean of its divisors is an integer number (49095607).

Almost surely, 2^98191213 is an apocalyptic number.

It is an amenable number.

98191213 is a deficient number, since it is larger than the sum of its proper divisors (1).

98191213 is an equidigital number, since it uses as much as digits as its factorization.

98191213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 34.

The square root of 98191213 is about 9909.1479452070. The cubic root of 98191213 is about 461.3432899584.

The spelling of 98191213 in words is "ninety-eight million, one hundred ninety-one thousand, two hundred thirteen".