85818836 has 24 divisors (see below), whose sum is σ = 156433536. Its totient is φ = 41156640.

The previous prime is 85818833. The next prime is 85818847. The reversal of 85818836 is 63881858.

It is a super-2 number, since 2×85818836² = 14729745224789792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85818833) 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, 6425 + ... + 14591.

It is an arithmetic number, because the mean of its divisors is an integer number (6518064).

Almost surely, 2^85818836 is an apocalyptic number.

It is an amenable number.

85818836 is a deficient number, since it is larger than the sum of its proper divisors (70614700).

85818836 is a wasteful number, since it uses less digits than its factorization.

85818836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8279 (or 8277 counting only the distinct ones).

The product of its digits is 368640, while the sum is 47.

The square root of 85818836 is about 9263.8456377468. The cubic root of 85818836 is about 441.0903330805.

The spelling of 85818836 in words is "eighty-five million, eight hundred eighteen thousand, eight hundred thirty-six".