86425829 has 16 divisors (see below), whose sum is σ = 104565120. Its totient is φ = 69854400.

The previous prime is 86425819. The next prime is 86425847. The reversal of 86425829 is 92852468.

It is a de Polignac number, because none of the positive numbers 2^k-86425829 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 86425829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86425819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3779 + ... + 13679.

It is an arithmetic number, because the mean of its divisors is an integer number (6535320).

Almost surely, 2^86425829 is an apocalyptic number.

It is an amenable number.

86425829 is a deficient number, since it is larger than the sum of its proper divisors (18139291).

86425829 is a wasteful number, since it uses less digits than its factorization.

86425829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9980.

The product of its digits is 276480, while the sum is 44.

The square root of 86425829 is about 9296.5493060597. The cubic root of 86425829 is about 442.1278286188.

The spelling of 86425829 in words is "eighty-six million, four hundred twenty-five thousand, eight hundred twenty-nine".