85899347 has 2 divisors, whose sum is σ = 85899348. Its totient is φ = 85899346.

The previous prime is 85899343. The next prime is 85899353. The reversal of 85899347 is 74399858.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85899347 - 2² = 85899343 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85899343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42949673 + 42949674.

It is an arithmetic number, because the mean of its divisors is an integer number (42949674).

Almost surely, 2^85899347 is an apocalyptic number.

85899347 is a deficient number, since it is larger than the sum of its proper divisors (1).

85899347 is an equidigital number, since it uses as much as digits as its factorization.

85899347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 53.

The square root of 85899347 is about 9268.1900606321. The cubic root of 85899347 is about 441.2282263677.

The spelling of 85899347 in words is "eighty-five million, eight hundred ninety-nine thousand, three hundred forty-seven".