99895427 has 2 divisors, whose sum is σ = 99895428. Its totient is φ = 99895426.

The previous prime is 99895399. The next prime is 99895429. The reversal of 99895427 is 72459899.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99895427 is a prime.

Together with 99895429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99895429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49947713 + 49947714.

It is an arithmetic number, because the mean of its divisors is an integer number (49947714).

Almost surely, 2^99895427 is an apocalyptic number.

99895427 is a deficient number, since it is larger than the sum of its proper divisors (1).

99895427 is an equidigital number, since it uses as much as digits as its factorization.

99895427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 53.

The square root of 99895427 is about 9994.7699823458. The cubic root of 99895427 is about 463.9970319742.

Subtracting from 99895427 its reverse (72459899), we obtain a triangular number (27435528 = T₇₄₀₇).

The spelling of 99895427 in words is "ninety-nine million, eight hundred ninety-five thousand, four hundred twenty-seven".