86620289 has 12 divisors (see below), whose sum is σ = 101026800. Its totient is φ = 74051208.

The previous prime is 86620283. The next prime is 86620291. The reversal of 86620289 is 98202668.

It is not a de Polignac number, because 86620289 - 2⁴ = 86620273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86620283) 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 11 ways as a sum of consecutive naturals, for example, 18422 + ... + 22640.

It is an arithmetic number, because the mean of its divisors is an integer number (8418900).

Almost surely, 2^86620289 is an apocalyptic number.

It is an amenable number.

86620289 is a deficient number, since it is larger than the sum of its proper divisors (14406511).

86620289 is a wasteful number, since it uses less digits than its factorization.

86620289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4652 (or 4645 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 86620289 is about 9307.0021489199. The cubic root of 86620289 is about 442.4591793129.

The spelling of 86620289 in words is "eighty-six million, six hundred twenty thousand, two hundred eighty-nine".