99995641 has 2 divisors, whose sum is σ = 99995642. Its totient is φ = 99995640.

The previous prime is 99995629. The next prime is 99995647. The reversal of 99995641 is 14659999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99920016 + 75625 = 9996^2 + 275^2 .

It is a cyclic number.

It is not a de Polignac number, because 99995641 - 2¹³ = 99987449 is a prime.

It is not a weakly prime, because it can be changed into another prime (99995647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49997820 + 49997821.

It is an arithmetic number, because the mean of its divisors is an integer number (49997821).

Almost surely, 2^99995641 is an apocalyptic number.

It is an amenable number.

99995641 is a deficient number, since it is larger than the sum of its proper divisors (1).

99995641 is an equidigital number, since it uses as much as digits as its factorization.

99995641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 787320, while the sum is 52.

The square root of 99995641 is about 9999.7820476248. The cubic root of 99995641 is about 464.1521390347.

The spelling of 99995641 in words is "ninety-nine million, nine hundred ninety-five thousand, six hundred forty-one".