86484857 has 2 divisors, whose sum is σ = 86484858. Its totient is φ = 86484856.

The previous prime is 86484829. The next prime is 86484859. The reversal of 86484857 is 75848468.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86471401 + 13456 = 9299^2 + 116^2 .

It is a cyclic number.

It is not a de Polignac number, because 86484857 - 2⁶ = 86484793 is a prime.

Together with 86484859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86484859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43242428 + 43242429.

It is an arithmetic number, because the mean of its divisors is an integer number (43242429).

Almost surely, 2^86484857 is an apocalyptic number.

It is an amenable number.

86484857 is a deficient number, since it is larger than the sum of its proper divisors (1).

86484857 is an equidigital number, since it uses as much as digits as its factorization.

86484857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1720320, while the sum is 50.

The square root of 86484857 is about 9299.7234905130. The cubic root of 86484857 is about 442.2284620463.

The spelling of 86484857 in words is "eighty-six million, four hundred eighty-four thousand, eight hundred fifty-seven".