85816412 has 24 divisors (see below), whose sum is σ = 164490480. Its totient is φ = 38850560.

The previous prime is 85816411. The next prime is 85816417. The reversal of 85816412 is 21461858.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85816411) 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, 7514 + ... + 15102.

It is an arithmetic number, because the mean of its divisors is an integer number (6853770).

Almost surely, 2^85816412 is an apocalyptic number.

It is an amenable number.

85816412 is a deficient number, since it is larger than the sum of its proper divisors (78674068).

85816412 is a wasteful number, since it uses less digits than its factorization.

85816412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7861 (or 7859 counting only the distinct ones).

The product of its digits is 15360, while the sum is 35.

The square root of 85816412 is about 9263.7148056274. The cubic root of 85816412 is about 441.0861800954.

The spelling of 85816412 in words is "eighty-five million, eight hundred sixteen thousand, four hundred twelve".