86631429 has 8 divisors (see below), whose sum is σ = 115577280. Its totient is φ = 57719936.

The previous prime is 86631427. The next prime is 86631463. The reversal of 86631429 is 92413668.

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

It is a cyclic number.

It is not a de Polignac number, because 86631429 - 2¹ = 86631427 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86631421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1977 + ... + 13310.

It is an arithmetic number, because the mean of its divisors is an integer number (14447160).

Almost surely, 2^86631429 is an apocalyptic number.

It is an amenable number.

86631429 is a deficient number, since it is larger than the sum of its proper divisors (28945851).

86631429 is a wasteful number, since it uses less digits than its factorization.

86631429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17179.

The product of its digits is 62208, while the sum is 39.

The square root of 86631429 is about 9307.6006038076. The cubic root of 86631429 is about 442.4781463241.

The spelling of 86631429 in words is "eighty-six million, six hundred thirty-one thousand, four hundred twenty-nine".