86565434 has 4 divisors (see below), whose sum is σ = 129848154. Its totient is φ = 43282716.

The previous prime is 86565433. The next prime is 86565439. The reversal of 86565434 is 43456568.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 77880625 + 8684809 = 8825^2 + 2947^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86565391 and 86565400.

It is not an unprimeable number, because it can be changed into a prime (86565433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21641357 + ... + 21641360.

Almost surely, 2^86565434 is an apocalyptic number.

86565434 is a deficient number, since it is larger than the sum of its proper divisors (43282720).

86565434 is a wasteful number, since it uses less digits than its factorization.

86565434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43282719.

The product of its digits is 345600, while the sum is 41.

The square root of 86565434 is about 9304.0547074918. The cubic root of 86565434 is about 442.3657592307.

The spelling of 86565434 in words is "eighty-six million, five hundred sixty-five thousand, four hundred thirty-four".