85229899 has 4 divisors (see below), whose sum is σ = 85455160. Its totient is φ = 85004640.

The previous prime is 85229897. The next prime is 85229933. The reversal of 85229899 is 99892258.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85229899 - 2¹ = 85229897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85229897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112062 + ... + 112819.

It is an arithmetic number, because the mean of its divisors is an integer number (21363790).

Almost surely, 2^85229899 is an apocalyptic number.

85229899 is a deficient number, since it is larger than the sum of its proper divisors (225261).

85229899 is a wasteful number, since it uses less digits than its factorization.

85229899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225260.

The product of its digits is 933120, while the sum is 52.

The square root of 85229899 is about 9232.0040619575. The cubic root of 85229899 is about 440.0790130142.

The spelling of 85229899 in words is "eighty-five million, two hundred twenty-nine thousand, eight hundred ninety-nine".