85869012 has 12 divisors (see below), whose sum is σ = 200361056. Its totient is φ = 28623000.

The previous prime is 85869011. The next prime is 85869031. The reversal of 85869012 is 21096858.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×85869012² = 14746974443712288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85869011) 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, 3577864 + ... + 3577887.

Almost surely, 2^85869012 is an apocalyptic number.

It is an amenable number.

85869012 is an abundant number, since it is smaller than the sum of its proper divisors (114492044).

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

85869012 is a wasteful number, since it uses less digits than its factorization.

85869012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7155758 (or 7155756 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 85869012 is about 9266.5534045836. The cubic root of 85869012 is about 441.1762809432.

The spelling of 85869012 in words is "eighty-five million, eight hundred sixty-nine thousand, twelve".