86972529 has 8 divisors (see below), whose sum is σ = 132529600. Its totient is φ = 49698576.

The previous prime is 86972507. The next prime is 86972539. The reversal of 86972529 is 92527968.

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

It is not a de Polignac number, because 86972529 - 2⁷ = 86972401 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86972539) 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, 2070754 + ... + 2070795.

It is an arithmetic number, because the mean of its divisors is an integer number (16566200).

Almost surely, 2^86972529 is an apocalyptic number.

It is an amenable number.

86972529 is a deficient number, since it is larger than the sum of its proper divisors (45557071).

86972529 is a wasteful number, since it uses less digits than its factorization.

86972529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4141559.

The product of its digits is 544320, while the sum is 48.

The square root of 86972529 is about 9325.9063366517. The cubic root of 86972529 is about 443.0581192102.

The spelling of 86972529 in words is "eighty-six million, nine hundred seventy-two thousand, five hundred twenty-nine".