87486853 has 2 divisors, whose sum is σ = 87486854. Its totient is φ = 87486852.

The previous prime is 87486851. The next prime is 87486869. The reversal of 87486853 is 35868478.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66308449 + 21178404 = 8143^2 + 4602^2 .

It is a cyclic number.

It is not a de Polignac number, because 87486853 - 2¹ = 87486851 is a prime.

Together with 87486851, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 87486797 and 87486806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87486851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43743426 + 43743427.

It is an arithmetic number, because the mean of its divisors is an integer number (43743427).

Almost surely, 2^87486853 is an apocalyptic number.

It is an amenable number.

87486853 is a deficient number, since it is larger than the sum of its proper divisors (1).

87486853 is an equidigital number, since it uses as much as digits as its factorization.

87486853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 49.

The square root of 87486853 is about 9353.4407038266. The cubic root of 87486853 is about 443.9297649502.

The spelling of 87486853 in words is "eighty-seven million, four hundred eighty-six thousand, eight hundred fifty-three".