68244949 has 2 divisors, whose sum is σ = 68244950. Its totient is φ = 68244948.

The previous prime is 68244947. The next prime is 68244989. The reversal of 68244949 is 94944286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51022449 + 17222500 = 7143^2 + 4150^2 .

It is a cyclic number.

It is not a de Polignac number, because 68244949 - 2¹ = 68244947 is a prime.

Together with 68244947, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 68244899 and 68244908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68244947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34122474 + 34122475.

It is an arithmetic number, because the mean of its divisors is an integer number (34122475).

Almost surely, 2^68244949 is an apocalyptic number.

It is an amenable number.

68244949 is a deficient number, since it is larger than the sum of its proper divisors (1).

68244949 is an equidigital number, since it uses as much as digits as its factorization.

68244949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 46.

The square root of 68244949 is about 8261.0501148462. The cubic root of 68244949 is about 408.6550196257.

The spelling of 68244949 in words is "sixty-eight million, two hundred forty-four thousand, nine hundred forty-nine".