86555236 has 6 divisors (see below), whose sum is σ = 151471670. Its totient is φ = 43277616.

The previous prime is 86555221. The next prime is 86555239. The reversal of 86555236 is 63255568.

It can be written as a sum of positive squares in only one way, i.e., 53377636 + 33177600 = 7306^2 + 5760^2 .

It is not an unprimeable number, because it can be changed into a prime (86555239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10819401 + ... + 10819408.

Almost surely, 2^86555236 is an apocalyptic number.

It is an amenable number.

86555236 is a deficient number, since it is larger than the sum of its proper divisors (64916434).

86555236 is a wasteful number, since it uses less digits than its factorization.

86555236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21638813 (or 21638811 counting only the distinct ones).

The product of its digits is 216000, while the sum is 40.

The square root of 86555236 is about 9303.5066507205. The cubic root of 86555236 is about 442.3483873115.

The spelling of 86555236 in words is "eighty-six million, five hundred fifty-five thousand, two hundred thirty-six".