86732129 has 4 divisors (see below), whose sum is σ = 94616880. Its totient is φ = 78847380.

The previous prime is 86732117. The next prime is 86732159. The reversal of 86732129 is 92123768.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86732129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86732092 and 86732101.

It is not an unprimeable number, because it can be changed into a prime (86732159) 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, 3942359 + ... + 3942380.

It is an arithmetic number, because the mean of its divisors is an integer number (23654220).

Almost surely, 2^86732129 is an apocalyptic number.

It is an amenable number.

86732129 is a deficient number, since it is larger than the sum of its proper divisors (7884751).

86732129 is a wasteful number, since it uses less digits than its factorization.

86732129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7884750.

The product of its digits is 36288, while the sum is 38.

The square root of 86732129 is about 9313.0085901388. The cubic root of 86732129 is about 442.6495248353.

The spelling of 86732129 in words is "eighty-six million, seven hundred thirty-two thousand, one hundred twenty-nine".