86648537 has 4 divisors (see below), whose sum is σ = 86672436. Its totient is φ = 86624640.

The previous prime is 86648533. The next prime is 86648557. The reversal of 86648537 is 73584668.

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 40081561 + 46566976 = 6331^2 + 6824^2 .

It is a cyclic number.

It is not a de Polignac number, because 86648537 - 2² = 86648533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86648491 and 86648500.

It is not an unprimeable number, because it can be changed into a prime (86648533) 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, 5264 + ... + 14177.

It is an arithmetic number, because the mean of its divisors is an integer number (21668109).

Almost surely, 2^86648537 is an apocalyptic number.

It is an amenable number.

86648537 is a deficient number, since it is larger than the sum of its proper divisors (23899).

86648537 is a wasteful number, since it uses less digits than its factorization.

86648537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23898.

The product of its digits is 967680, while the sum is 47.

The square root of 86648537 is about 9308.5195922875. The cubic root of 86648537 is about 442.5072713117.

The spelling of 86648537 in words is "eighty-six million, six hundred forty-eight thousand, five hundred thirty-seven".