98182991 has 2 divisors, whose sum is σ = 98182992. Its totient is φ = 98182990.

The previous prime is 98182979. The next prime is 98182993. The reversal of 98182991 is 19928189.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98182991 is a prime.

Together with 98182993, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98182993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49091495 + 49091496.

It is an arithmetic number, because the mean of its divisors is an integer number (49091496).

Almost surely, 2^98182991 is an apocalyptic number.

98182991 is a deficient number, since it is larger than the sum of its proper divisors (1).

98182991 is an equidigital number, since it uses as much as digits as its factorization.

98182991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 47.

The square root of 98182991 is about 9908.7330673502. The cubic root of 98182991 is about 461.3304128034.

The spelling of 98182991 in words is "ninety-eight million, one hundred eighty-two thousand, nine hundred ninety-one".