86970531 has 8 divisors (see below), whose sum is σ = 119701504. Its totient is φ = 56109960.

The previous prime is 86970529. The next prime is 86970557. The reversal of 86970531 is 13507968.

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

It is not a de Polignac number, because 86970531 - 2¹ = 86970529 is a prime.

It is a super-2 number, since 2×86970531² = 15127746524843922, which contains 22 as substring.

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 86970531.

It is not an unprimeable number, because it can be changed into a prime (86970511) 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, 467491 + ... + 467676.

It is an arithmetic number, because the mean of its divisors is an integer number (14962688).

Almost surely, 2^86970531 is an apocalyptic number.

86970531 is a deficient number, since it is larger than the sum of its proper divisors (32730973).

86970531 is a wasteful number, since it uses less digits than its factorization.

86970531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935201.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 86970531 is about 9325.7992150807. The cubic root of 86970531 is about 443.0547264266.

The spelling of 86970531 in words is "eighty-six million, nine hundred seventy thousand, five hundred thirty-one".