86510953 has 2 divisors, whose sum is σ = 86510954. Its totient is φ = 86510952.

The previous prime is 86510951. The next prime is 86510989. The reversal of 86510953 is 35901568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53758224 + 32752729 = 7332^2 + 5723^2 .

It is a cyclic number.

It is not a de Polignac number, because 86510953 - 2¹ = 86510951 is a prime.

Together with 86510951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (86510951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43255476 + 43255477.

It is an arithmetic number, because the mean of its divisors is an integer number (43255477).

Almost surely, 2^86510953 is an apocalyptic number.

It is an amenable number.

86510953 is a deficient number, since it is larger than the sum of its proper divisors (1).

86510953 is an equidigital number, since it uses as much as digits as its factorization.

86510953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 86510953 is about 9301.1264371580. The cubic root of 86510953 is about 442.2729370130.

The spelling of 86510953 in words is "eighty-six million, five hundred ten thousand, nine hundred fifty-three".