85402211 has 4 divisors (see below), whose sum is σ = 85435152. Its totient is φ = 85369272.

The previous prime is 85402199. The next prime is 85402217. The reversal of 85402211 is 11220458.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85402211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85402217) 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, 12215 + ... + 17888.

It is an arithmetic number, because the mean of its divisors is an integer number (21358788).

Almost surely, 2^85402211 is an apocalyptic number.

85402211 is a deficient number, since it is larger than the sum of its proper divisors (32941).

85402211 is a wasteful number, since it uses less digits than its factorization.

85402211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32940.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 85402211 is about 9241.3316681093. The cubic root of 85402211 is about 440.3753872908.

Adding to 85402211 its reverse (11220458), we get a palindrome (96622669).

The spelling of 85402211 in words is "eighty-five million, four hundred two thousand, two hundred eleven".