86849953 has 2 divisors, whose sum is σ = 86849954. Its totient is φ = 86849952.

The previous prime is 86849929. The next prime is 86849963. The reversal of 86849953 is 35994868.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53406864 + 33443089 = 7308^2 + 5783^2 .

It is a cyclic number.

It is not a de Polignac number, because 86849953 - 2²⁵ = 53295521 is a prime.

It is a super-2 number, since 2×86849953² = 15085828672204418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86849953.

It is not a weakly prime, because it can be changed into another prime (86849963) 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, 43424976 + 43424977.

It is an arithmetic number, because the mean of its divisors is an integer number (43424977).

Almost surely, 2^86849953 is an apocalyptic number.

It is an amenable number.

86849953 is a deficient number, since it is larger than the sum of its proper divisors (1).

86849953 is an equidigital number, since it uses as much as digits as its factorization.

86849953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 52.

The square root of 86849953 is about 9319.3322185659. The cubic root of 86849953 is about 442.8498778799.

The spelling of 86849953 in words is "eighty-six million, eight hundred forty-nine thousand, nine hundred fifty-three".