68828839 has 2 divisors, whose sum is σ = 68828840. Its totient is φ = 68828838.

The previous prime is 68828831. The next prime is 68828863. The reversal of 68828839 is 93882886.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68828839 - 2³ = 68828831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68828831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34414419 + 34414420.

It is an arithmetic number, because the mean of its divisors is an integer number (34414420).

Almost surely, 2^68828839 is an apocalyptic number.

68828839 is a deficient number, since it is larger than the sum of its proper divisors (1).

68828839 is an equidigital number, since it uses as much as digits as its factorization.

68828839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1327104, while the sum is 52.

The square root of 68828839 is about 8296.3147842883. The cubic root of 68828839 is about 409.8171681346.

The spelling of 68828839 in words is "sixty-eight million, eight hundred twenty-eight thousand, eight hundred thirty-nine".