68883449 has 2 divisors, whose sum is σ = 68883450. Its totient is φ = 68883448.

The previous prime is 68883433. The next prime is 68883461. The reversal of 68883449 is 94438886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63313849 + 5569600 = 7957^2 + 2360^2 .

It is a cyclic number.

It is not a de Polignac number, because 68883449 - 2⁴ = 68883433 is a prime.

It is a super-2 number, since 2×68883449² = 9489859092271202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68883397 and 68883406.

It is not a weakly prime, because it can be changed into another prime (68883499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34441724 + 34441725.

It is an arithmetic number, because the mean of its divisors is an integer number (34441725).

Almost surely, 2^68883449 is an apocalyptic number.

It is an amenable number.

68883449 is a deficient number, since it is larger than the sum of its proper divisors (1).

68883449 is an equidigital number, since it uses as much as digits as its factorization.

68883449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1327104, while the sum is 50.

The square root of 68883449 is about 8299.6053520634. The cubic root of 68883449 is about 409.9255248427.

The spelling of 68883449 in words is "sixty-eight million, eight hundred eighty-three thousand, four hundred forty-nine".