85827899 has 2 divisors, whose sum is σ = 85827900. Its totient is φ = 85827898.

The previous prime is 85827887. The next prime is 85827919. The reversal of 85827899 is 99872858.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85827899 is a prime.

It is not a weakly prime, because it can be changed into another prime (85877899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42913949 + 42913950.

It is an arithmetic number, because the mean of its divisors is an integer number (42913950).

Almost surely, 2^85827899 is an apocalyptic number.

85827899 is a deficient number, since it is larger than the sum of its proper divisors (1).

85827899 is an equidigital number, since it uses as much as digits as its factorization.

85827899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 56.

The square root of 85827899 is about 9264.3347845380. The cubic root of 85827899 is about 441.1058598233.

The spelling of 85827899 in words is "eighty-five million, eight hundred twenty-seven thousand, eight hundred ninety-nine".