86489537 has 4 divisors (see below), whose sum is σ = 86572116. Its totient is φ = 86406960.

The previous prime is 86489531. The next prime is 86489549. The reversal of 86489537 is 73598468.

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 22505536 + 63984001 = 4744^2 + 7999^2 .

It is a cyclic number.

It is not a de Polignac number, because 86489537 - 2²⁰ = 85440961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86489531) 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, 39698 + ... + 41819.

It is an arithmetic number, because the mean of its divisors is an integer number (21643029).

Almost surely, 2^86489537 is an apocalyptic number.

It is an amenable number.

86489537 is a deficient number, since it is larger than the sum of its proper divisors (82579).

86489537 is a wasteful number, since it uses less digits than its factorization.

86489537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82578.

The product of its digits is 1451520, while the sum is 50.

The square root of 86489537 is about 9299.9751074936. The cubic root of 86489537 is about 442.2364387486.

The spelling of 86489537 in words is "eighty-six million, four hundred eighty-nine thousand, five hundred thirty-seven".