86401853 has 2 divisors, whose sum is σ = 86401854. Its totient is φ = 86401852.

The previous prime is 86401841. The next prime is 86401897. The reversal of 86401853 is 35810468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68194564 + 18207289 = 8258^2 + 4267^2 .

It is a cyclic number.

It is not a de Polignac number, because 86401853 - 2⁶ = 86401789 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86401753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43200926 + 43200927.

It is an arithmetic number, because the mean of its divisors is an integer number (43200927).

Almost surely, 2^86401853 is an apocalyptic number.

It is an amenable number.

86401853 is a deficient number, since it is larger than the sum of its proper divisors (1).

86401853 is an equidigital number, since it uses as much as digits as its factorization.

86401853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 86401853 is about 9295.2597058931. The cubic root of 86401853 is about 442.0869402357.

The spelling of 86401853 in words is "eighty-six million, four hundred one thousand, eight hundred fifty-three".