86081437 has 4 divisors (see below), whose sum is σ = 92703100. Its totient is φ = 79459776.

The previous prime is 86081417. The next prime is 86081447. The reversal of 86081437 is 73418068.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19838116 + 66243321 = 4454^2 + 8139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86081437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86081396 and 86081405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86081407) 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, 3310812 + ... + 3310837.

It is an arithmetic number, because the mean of its divisors is an integer number (23175775).

Almost surely, 2^86081437 is an apocalyptic number.

It is an amenable number.

86081437 is a deficient number, since it is larger than the sum of its proper divisors (6621663).

86081437 is a wasteful number, since it uses less digits than its factorization.

86081437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6621662.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 86081437 is about 9278.0082453078. The cubic root of 86081437 is about 441.5397791582.

The spelling of 86081437 in words is "eighty-six million, eighty-one thousand, four hundred thirty-seven".