99541879 has 2 divisors, whose sum is σ = 99541880. Its totient is φ = 99541878.

The previous prime is 99541867. The next prime is 99541901. The reversal of 99541879 is 97814599.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99541879 - 2⁵ = 99541847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99541979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49770939 + 49770940.

It is an arithmetic number, because the mean of its divisors is an integer number (49770940).

Almost surely, 2^99541879 is an apocalyptic number.

99541879 is a deficient number, since it is larger than the sum of its proper divisors (1).

99541879 is an equidigital number, since it uses as much as digits as its factorization.

99541879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 52.

The square root of 99541879 is about 9977.0676553785. The cubic root of 99541879 is about 463.4489951000.

The spelling of 99541879 in words is "ninety-nine million, five hundred forty-one thousand, eight hundred seventy-nine".