86504669 has 2 divisors, whose sum is σ = 86504670. Its totient is φ = 86504668.

The previous prime is 86504659. The next prime is 86504681. The reversal of 86504669 is 96640568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69939769 + 16564900 = 8363^2 + 4070^2 .

It is a cyclic number.

It is not a de Polignac number, because 86504669 - 2⁸ = 86504413 is a prime.

It is a super-2 number, since 2×86504669² = 14966115517599122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86504609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43252334 + 43252335.

It is an arithmetic number, because the mean of its divisors is an integer number (43252335).

Almost surely, 2^86504669 is an apocalyptic number.

It is an amenable number.

86504669 is a deficient number, since it is larger than the sum of its proper divisors (1).

86504669 is an equidigital number, since it uses as much as digits as its factorization.

86504669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 86504669 is about 9300.7886224771. The cubic root of 86504669 is about 442.2622281168.

The spelling of 86504669 in words is "eighty-six million, five hundred four thousand, six hundred sixty-nine".