86662573 has 2 divisors, whose sum is σ = 86662574. Its totient is φ = 86662572.

The previous prime is 86662493. The next prime is 86662603. The reversal of 86662573 is 37526668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43917129 + 42745444 = 6627^2 + 6538^2 .

It is a cyclic number.

It is not a de Polignac number, because 86662573 - 2⁹ = 86662061 is a prime.

It is a super-3 number, since 3×86662573³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86669573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43331286 + 43331287.

It is an arithmetic number, because the mean of its divisors is an integer number (43331287).

Almost surely, 2^86662573 is an apocalyptic number.

It is an amenable number.

86662573 is a deficient number, since it is larger than the sum of its proper divisors (1).

86662573 is an equidigital number, since it uses as much as digits as its factorization.

86662573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The square root of 86662573 is about 9309.2734947471. The cubic root of 86662573 is about 442.5311636047.

The spelling of 86662573 in words is "eighty-six million, six hundred sixty-two thousand, five hundred seventy-three".