899895541 has 2 divisors, whose sum is σ = 899895542. Its totient is φ = 899895540.

The previous prime is 899895517. The next prime is 899895551. The reversal of 899895541 is 145598998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 823403025 + 76492516 = 28695^2 + 8746^2 .

It is a cyclic number.

It is not a de Polignac number, because 899895541 - 2⁵ = 899895509 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (899895551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449947770 + 449947771.

It is an arithmetic number, because the mean of its divisors is an integer number (449947771).

Almost surely, 2^899895541 is an apocalyptic number.

It is an amenable number.

899895541 is a deficient number, since it is larger than the sum of its proper divisors (1).

899895541 is an equidigital number, since it uses as much as digits as its factorization.

899895541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4665600, while the sum is 58.

The square root of 899895541 is about 29998.2589661467. The cubic root of 899895541 is about 965.4520298065.

The spelling of 899895541 in words is "eight hundred ninety-nine million, eight hundred ninety-five thousand, five hundred forty-one".