99228841 has 2 divisors, whose sum is σ = 99228842. Its totient is φ = 99228840.

The previous prime is 99228823. The next prime is 99228851. The reversal of 99228841 is 14882299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85008400 + 14220441 = 9220^2 + 3771^2 .

It is an emirp because it is prime and its reverse (14882299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99228841 - 2⁷ = 99228713 is a prime.

It is not a weakly prime, because it can be changed into another prime (99228851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49614420 + 49614421.

It is an arithmetic number, because the mean of its divisors is an integer number (49614421).

Almost surely, 2^99228841 is an apocalyptic number.

It is an amenable number.

99228841 is a deficient number, since it is larger than the sum of its proper divisors (1).

99228841 is an equidigital number, since it uses as much as digits as its factorization.

99228841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 43.

The square root of 99228841 is about 9961.3674262121. The cubic root of 99228841 is about 462.9626688317.

The spelling of 99228841 in words is "ninety-nine million, two hundred twenty-eight thousand, eight hundred forty-one".