86579629 has 2 divisors, whose sum is σ = 86579630. Its totient is φ = 86579628.

The previous prime is 86579627. The next prime is 86579639. The reversal of 86579629 is 92697568.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61308900 + 25270729 = 7830^2 + 5027^2 .

It is a cyclic number.

It is not a de Polignac number, because 86579629 - 2¹ = 86579627 is a prime.

Together with 86579627, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86579627) 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 as a sum of consecutive naturals, namely, 43289814 + 43289815.

It is an arithmetic number, because the mean of its divisors is an integer number (43289815).

Almost surely, 2^86579629 is an apocalyptic number.

It is an amenable number.

86579629 is a deficient number, since it is larger than the sum of its proper divisors (1).

86579629 is an equidigital number, since it uses as much as digits as its factorization.

86579629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 52.

The square root of 86579629 is about 9304.8175156743. The cubic root of 86579629 is about 442.3899376218.

The spelling of 86579629 in words is "eighty-six million, five hundred seventy-nine thousand, six hundred twenty-nine".