86629511 has 2 divisors, whose sum is σ = 86629512. Its totient is φ = 86629510.

The previous prime is 86629483. The next prime is 86629513. The reversal of 86629511 is 11592668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86629511 - 2¹⁴ = 86613127 is a prime.

Together with 86629513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86629513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43314755 + 43314756.

It is an arithmetic number, because the mean of its divisors is an integer number (43314756).

Almost surely, 2^86629511 is an apocalyptic number.

86629511 is a deficient number, since it is larger than the sum of its proper divisors (1).

86629511 is an equidigital number, since it uses as much as digits as its factorization.

86629511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 38.

The square root of 86629511 is about 9307.4975691643. The cubic root of 86629511 is about 442.4748808451.

The spelling of 86629511 in words is "eighty-six million, six hundred twenty-nine thousand, five hundred eleven".