85216710 has 32 divisors (see below), whose sum is σ = 215285760. Its totient is φ = 21528288.

The previous prime is 85216693. The next prime is 85216711. The reversal of 85216710 is 1761258.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85216711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74182 + ... + 75321.

It is an arithmetic number, because the mean of its divisors is an integer number (6727680).

Almost surely, 2^85216710 is an apocalyptic number.

85216710 is an abundant number, since it is smaller than the sum of its proper divisors (130069050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85216710 is a wasteful number, since it uses less digits than its factorization.

85216710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149532.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 85216710 is about 9231.2897257101. The cubic root of 85216710 is about 440.0563116634.

Adding to 85216710 its reverse (1761258), we get a palindrome (86977968).

The spelling of 85216710 in words is "eighty-five million, two hundred sixteen thousand, seven hundred ten".