68800049 has 2 divisors, whose sum is σ = 68800050. Its totient is φ = 68800048.

The previous prime is 68800033. The next prime is 68800051. The reversal of 68800049 is 94000886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56325025 + 12475024 = 7505^2 + 3532^2 .

It is a cyclic number.

It is not a de Polignac number, because 68800049 - 2⁴ = 68800033 is a prime.

Together with 68800051, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68799991 and 68800018.

It is not a weakly prime, because it can be changed into another prime (68800079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34400024 + 34400025.

It is an arithmetic number, because the mean of its divisors is an integer number (34400025).

Almost surely, 2^68800049 is an apocalyptic number.

It is an amenable number.

68800049 is a deficient number, since it is larger than the sum of its proper divisors (1).

68800049 is an equidigital number, since it uses as much as digits as its factorization.

68800049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 68800049 is about 8294.5794950678. The cubic root of 68800049 is about 409.7600201819.

The spelling of 68800049 in words is "sixty-eight million, eight hundred thousand, forty-nine".