85428299 has 6 divisors (see below), whose sum is σ = 93900660. Its totient is φ = 77661980.

The previous prime is 85428289. The next prime is 85428353. The reversal of 85428299 is 99282458.

It is not a de Polignac number, because 85428299 - 2¹² = 85424203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85428289) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 352889 + ... + 353130.

It is an arithmetic number, because the mean of its divisors is an integer number (15650110).

Almost surely, 2^85428299 is an apocalyptic number.

85428299 is a deficient number, since it is larger than the sum of its proper divisors (8472361).

85428299 is a wasteful number, since it uses less digits than its factorization.

85428299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706041 (or 706030 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 85428299 is about 9242.7430452220. The cubic root of 85428299 is about 440.4202235363.

The spelling of 85428299 in words is "eighty-five million, four hundred twenty-eight thousand, two hundred ninety-nine".