86509236 has 24 divisors (see below), whose sum is σ = 220205664. Its totient is φ = 26214880.

The previous prime is 86509229. The next prime is 86509237. The reversal of 86509236 is 63290568.

It is a junction number, because it is equal to n+sod(n) for n = 86509194 and 86509203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86509237) 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, 327555 + ... + 327818.

It is an arithmetic number, because the mean of its divisors is an integer number (9175236).

Almost surely, 2^86509236 is an apocalyptic number.

It is an amenable number.

86509236 is an abundant number, since it is smaller than the sum of its proper divisors (133696428).

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

86509236 is a wasteful number, since it uses less digits than its factorization.

86509236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655391 (or 655389 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 86509236 is about 9301.0341360518. The cubic root of 86509236 is about 442.2700110341.

The spelling of 86509236 in words is "eighty-six million, five hundred nine thousand, two hundred thirty-six".