86451853 has 2 divisors, whose sum is σ = 86451854. Its totient is φ = 86451852.

The previous prime is 86451787. The next prime is 86451857. The reversal of 86451853 is 35815468.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85877289 + 574564 = 9267^2 + 758^2 .

It is a cyclic number.

It is not a de Polignac number, because 86451853 - 2¹³ = 86443661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86451857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43225926 + 43225927.

It is an arithmetic number, because the mean of its divisors is an integer number (43225927).

Almost surely, 2^86451853 is an apocalyptic number.

It is an amenable number.

86451853 is a deficient number, since it is larger than the sum of its proper divisors (1).

86451853 is an equidigital number, since it uses as much as digits as its factorization.

86451853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 115200, while the sum is 40.

The square root of 86451853 is about 9297.9488598292. The cubic root of 86451853 is about 442.1722010789.

The spelling of 86451853 in words is "eighty-six million, four hundred fifty-one thousand, eight hundred fifty-three".