85318620 has 24 divisors (see below), whose sum is σ = 238892304. Its totient is φ = 22751616.

The previous prime is 85318619. The next prime is 85318621. The reversal of 85318620 is 2681358.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85318619) and next prime (85318621).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85318621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710929 + ... + 711048.

It is an arithmetic number, because the mean of its divisors is an integer number (9953846).

Almost surely, 2^85318620 is an apocalyptic number.

It is an amenable number.

85318620 is an abundant number, since it is smaller than the sum of its proper divisors (153573684).

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

85318620 is a wasteful number, since it uses less digits than its factorization.

85318620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421989 (or 1421987 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 85318620 is about 9236.8078901750. The cubic root of 85318620 is about 440.2316617543.

Adding to 85318620 its reverse (2681358), we get a palindrome (87999978).

The spelling of 85318620 in words is "eighty-five million, three hundred eighteen thousand, six hundred twenty".