99899147 has 2 divisors, whose sum is σ = 99899148. Its totient is φ = 99899146.

The previous prime is 99899101. The next prime is 99899179. The reversal of 99899147 is 74199899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99899147 - 2¹⁴ = 99882763 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99899092 and 99899101.

It is not a weakly prime, because it can be changed into another prime (99899197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49949573 + 49949574.

It is an arithmetic number, because the mean of its divisors is an integer number (49949574).

Almost surely, 2^99899147 is an apocalyptic number.

99899147 is a deficient number, since it is larger than the sum of its proper divisors (1).

99899147 is an equidigital number, since it uses as much as digits as its factorization.

99899147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 56.

The square root of 99899147 is about 9994.9560779425. The cubic root of 99899147 is about 464.0027914889.

The spelling of 99899147 in words is "ninety-nine million, eight hundred ninety-nine thousand, one hundred forty-seven".