86564473 has 2 divisors, whose sum is σ = 86564474. Its totient is φ = 86564472.

The previous prime is 86564453. The next prime is 86564501. The reversal of 86564473 is 37446568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50239744 + 36324729 = 7088^2 + 6027^2 .

It is a cyclic number.

It is not a de Polignac number, because 86564473 - 2²¹ = 84467321 is a prime.

It is not a weakly prime, because it can be changed into another prime (86564453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43282236 + 43282237.

It is an arithmetic number, because the mean of its divisors is an integer number (43282237).

Almost surely, 2^86564473 is an apocalyptic number.

It is an amenable number.

86564473 is a deficient number, since it is larger than the sum of its proper divisors (1).

86564473 is an equidigital number, since it uses as much as digits as its factorization.

86564473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 43.

The square root of 86564473 is about 9304.0030631981. The cubic root of 86564473 is about 442.3641222606.

The spelling of 86564473 in words is "eighty-six million, five hundred sixty-four thousand, four hundred seventy-three".