68824277 has 2 divisors, whose sum is σ = 68824278. Its totient is φ = 68824276.

The previous prime is 68824253. The next prime is 68824297. The reversal of 68824277 is 77242886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36493681 + 32330596 = 6041^2 + 5686^2 .

It is a cyclic number.

It is not a de Polignac number, because 68824277 - 2¹⁰ = 68823253 is a prime.

It is a super-2 number, since 2×68824277² = 9473562209145458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68824237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34412138 + 34412139.

It is an arithmetic number, because the mean of its divisors is an integer number (34412139).

Almost surely, 2^68824277 is an apocalyptic number.

It is an amenable number.

68824277 is a deficient number, since it is larger than the sum of its proper divisors (1).

68824277 is an equidigital number, since it uses as much as digits as its factorization.

68824277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 301056, while the sum is 44.

The square root of 68824277 is about 8296.0398383807. The cubic root of 68824277 is about 409.8081136586.

The spelling of 68824277 in words is "sixty-eight million, eight hundred twenty-four thousand, two hundred seventy-seven".