86660437 has 4 divisors (see below), whose sum is σ = 88675840. Its totient is φ = 84645036.

The previous prime is 86660419. The next prime is 86660449. The reversal of 86660437 is 73406668.

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 86660437 - 2¹¹ = 86658389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86660437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86660137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007637 + ... + 1007722.

It is an arithmetic number, because the mean of its divisors is an integer number (22168960).

Almost surely, 2^86660437 is an apocalyptic number.

It is an amenable number.

86660437 is a deficient number, since it is larger than the sum of its proper divisors (2015403).

86660437 is a wasteful number, since it uses less digits than its factorization.

86660437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015402.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 86660437 is about 9309.1587697278. The cubic root of 86660437 is about 442.5275278394.

The spelling of 86660437 in words is "eighty-six million, six hundred sixty thousand, four hundred thirty-seven".