86456533 has 2 divisors, whose sum is σ = 86456534. Its totient is φ = 86456532.

The previous prime is 86456521. The next prime is 86456549. The reversal of 86456533 is 33565468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79263409 + 7193124 = 8903^2 + 2682^2 .

It is a cyclic number.

It is not a de Polignac number, because 86456533 - 2²¹ = 84359381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86456933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43228266 + 43228267.

It is an arithmetic number, because the mean of its divisors is an integer number (43228267).

Almost surely, 2^86456533 is an apocalyptic number.

It is an amenable number.

86456533 is a deficient number, since it is larger than the sum of its proper divisors (1).

86456533 is an equidigital number, since it uses as much as digits as its factorization.

86456533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 40.

The square root of 86456533 is about 9298.2005248327. The cubic root of 86456533 is about 442.1801798111.

The spelling of 86456533 in words is "eighty-six million, four hundred fifty-six thousand, five hundred thirty-three".