86530531 has 8 divisors (see below), whose sum is σ = 92733984. Its totient is φ = 80530560.

The previous prime is 86530511. The next prime is 86530547. The reversal of 86530531 is 13503568.

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 86530531 - 2⁹ = 86530019 is a prime.

It is a super-2 number, since 2×86530531² = 14975065590283922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86530493 and 86530502.

It is not an unprimeable number, because it can be changed into a prime (86530511) 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 7 ways as a sum of consecutive naturals, for example, 49990 + ... + 51691.

It is an arithmetic number, because the mean of its divisors is an integer number (11591748).

Almost surely, 2^86530531 is an apocalyptic number.

86530531 is a deficient number, since it is larger than the sum of its proper divisors (6203453).

86530531 is a wasteful number, since it uses less digits than its factorization.

86530531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101741.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 86530531 is about 9302.1788307901. The cubic root of 86530531 is about 442.3062975920.

The spelling of 86530531 in words is "eighty-six million, five hundred thirty thousand, five hundred thirty-one".