86708429 has 4 divisors (see below), whose sum is σ = 86970720. Its totient is φ = 86446140.

The previous prime is 86708417. The next prime is 86708437. The reversal of 86708429 is 92480768.

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 not a de Polignac number, because 86708429 - 2¹² = 86704333 is a prime.

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 86708429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86708029) 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, 130649 + ... + 131310.

It is an arithmetic number, because the mean of its divisors is an integer number (21742680).

Almost surely, 2^86708429 is an apocalyptic number.

It is an amenable number.

86708429 is a deficient number, since it is larger than the sum of its proper divisors (262291).

86708429 is a wasteful number, since it uses less digits than its factorization.

86708429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262290.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 86708429 is about 9311.7360894733. The cubic root of 86708429 is about 442.6092024098.

The spelling of 86708429 in words is "eighty-six million, seven hundred eight thousand, four hundred twenty-nine".