99000397 has 2 divisors, whose sum is σ = 99000398. Its totient is φ = 99000396.

The previous prime is 99000373. The next prime is 99000413. The reversal of 99000397 is 79300099.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72488196 + 26512201 = 8514^2 + 5149^2 .

It is an emirp because it is prime and its reverse (79300099) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99000397 - 2¹⁹ = 98476109 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 (99030397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49500198 + 49500199.

It is an arithmetic number, because the mean of its divisors is an integer number (49500199).

Almost surely, 2^99000397 is an apocalyptic number.

It is an amenable number.

99000397 is a deficient number, since it is larger than the sum of its proper divisors (1).

99000397 is an equidigital number, since it uses as much as digits as its factorization.

99000397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15309, while the sum is 37.

The square root of 99000397 is about 9949.8943210468. The cubic root of 99000397 is about 462.6071192837.

The spelling of 99000397 in words is "ninety-nine million, three hundred ninety-seven", and thus it is an aban number.