86437 has 8 divisors (see below), whose sum is σ = 95480. Its totient is φ = 77760.

The previous prime is 86423. The next prime is 86441. The reversal of 86437 is 73468.

It is a Cunningham number, because it is equal to 294²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 86436 = 1^2 + 294^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86437 - 2¹¹ = 84389 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 (86467) 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, 739 + ... + 847.

It is an arithmetic number, because the mean of its divisors is an integer number (11935).

2⁸⁶⁴³⁷ is an apocalyptic number.

It is an amenable number.

86437 is a deficient number, since it is larger than the sum of its proper divisors (9043).

86437 is a wasteful number, since it uses less digits than its factorization.

86437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183.

The product of its digits is 4032, while the sum is 28.

The square root of 86437 is about 294.0017006754. The cubic root of 86437 is about 44.2146876926.

The spelling of 86437 in words is "eighty-six thousand, four hundred thirty-seven".