99098381 has 2 divisors, whose sum is σ = 99098382. Its totient is φ = 99098380.

The previous prime is 99098333. The next prime is 99098399. The reversal of 99098381 is 18389099.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91508356 + 7590025 = 9566^2 + 2755^2 .

It is a cyclic number.

It is not a de Polignac number, because 99098381 - 2²² = 94904077 is a prime.

It is a super-2 number, since 2×99098381² = 19640978233642322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99098081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49549190 + 49549191.

It is an arithmetic number, because the mean of its divisors is an integer number (49549191).

Almost surely, 2^99098381 is an apocalyptic number.

It is an amenable number.

99098381 is a deficient number, since it is larger than the sum of its proper divisors (1).

99098381 is an equidigital number, since it uses as much as digits as its factorization.

99098381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 99098381 is about 9954.8169747113. The cubic root of 99098381 is about 462.7596882003.

The spelling of 99098381 in words is "ninety-nine million, ninety-eight thousand, three hundred eighty-one".