86389573 has 2 divisors, whose sum is σ = 86389574. Its totient is φ = 86389572.

The previous prime is 86389559. The next prime is 86389607. The reversal of 86389573 is 37598368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66879684 + 19509889 = 8178^2 + 4417^2 .

It is a cyclic number.

It is not a de Polignac number, because 86389573 - 2²¹ = 84292421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86389273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43194786 + 43194787.

It is an arithmetic number, because the mean of its divisors is an integer number (43194787).

Almost surely, 2^86389573 is an apocalyptic number.

It is an amenable number.

86389573 is a deficient number, since it is larger than the sum of its proper divisors (1).

86389573 is an equidigital number, since it uses as much as digits as its factorization.

86389573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 49.

The square root of 86389573 is about 9294.5991306780. The cubic root of 86389573 is about 442.0659951416.

The spelling of 86389573 in words is "eighty-six million, three hundred eighty-nine thousand, five hundred seventy-three".