68953849 has 2 divisors, whose sum is σ = 68953850. Its totient is φ = 68953848.

The previous prime is 68953847. The next prime is 68953867. The reversal of 68953849 is 94835986.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65092624 + 3861225 = 8068^2 + 1965^2 .

It is a cyclic number.

It is not a de Polignac number, because 68953849 - 2¹ = 68953847 is a prime.

Together with 68953847, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 68953796 and 68953805.

It is not a weakly prime, because it can be changed into another prime (68953847) 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, 34476924 + 34476925.

It is an arithmetic number, because the mean of its divisors is an integer number (34476925).

Almost surely, 2^68953849 is an apocalyptic number.

It is an amenable number.

68953849 is a deficient number, since it is larger than the sum of its proper divisors (1).

68953849 is an equidigital number, since it uses as much as digits as its factorization.

68953849 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 68953849 is about 8303.8454344960. The cubic root of 68953849 is about 410.0651274689.

The spelling of 68953849 in words is "sixty-eight million, nine hundred fifty-three thousand, eight hundred forty-nine".