86561413 has 4 divisors (see below), whose sum is σ = 86843680. Its totient is φ = 86279148.

The previous prime is 86561407. The next prime is 86561471. The reversal of 86561413 is 31416568.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86561413 - 2¹³ = 86553221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86561113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140673 + ... + 141286.

It is an arithmetic number, because the mean of its divisors is an integer number (21710920).

Almost surely, 2^86561413 is an apocalyptic number.

It is an amenable number.

86561413 is a deficient number, since it is larger than the sum of its proper divisors (282267).

86561413 is a wasteful number, since it uses less digits than its factorization.

86561413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282266.

The product of its digits is 17280, while the sum is 34.

The square root of 86561413 is about 9303.8386163991. The cubic root of 86561413 is about 442.3589097675.

The spelling of 86561413 in words is "eighty-six million, five hundred sixty-one thousand, four hundred thirteen".