86575493 has 2 divisors, whose sum is σ = 86575494. Its totient is φ = 86575492.

The previous prime is 86575471. The next prime is 86575549. The reversal of 86575493 is 39457568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86081284 + 494209 = 9278^2 + 703^2 .

It is a cyclic number.

It is not a de Polignac number, because 86575493 - 2¹⁸ = 86313349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86575453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43287746 + 43287747.

It is an arithmetic number, because the mean of its divisors is an integer number (43287747).

Almost surely, 2^86575493 is an apocalyptic number.

It is an amenable number.

86575493 is a deficient number, since it is larger than the sum of its proper divisors (1).

86575493 is an equidigital number, since it uses as much as digits as its factorization.

86575493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 47.

The square root of 86575493 is about 9304.5952625571. The cubic root of 86575493 is about 442.3828930320.

The spelling of 86575493 in words is "eighty-six million, five hundred seventy-five thousand, four hundred ninety-three".