68839501 has 2 divisors, whose sum is σ = 68839502. Its totient is φ = 68839500.

The previous prime is 68839469. The next prime is 68839523. The reversal of 68839501 is 10593886.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36360900 + 32478601 = 6030^2 + 5699^2 .

It is a cyclic number.

It is not a de Polignac number, because 68839501 - 2⁵ = 68839469 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68839601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34419750 + 34419751.

It is an arithmetic number, because the mean of its divisors is an integer number (34419751).

Almost surely, 2^68839501 is an apocalyptic number.

It is an amenable number.

68839501 is a deficient number, since it is larger than the sum of its proper divisors (1).

68839501 is an equidigital number, since it uses as much as digits as its factorization.

68839501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 68839501 is about 8296.9573338664. The cubic root of 68839501 is about 409.8383280879.

It can be divided in two parts, 6883 and 9501, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 68839501 in words is "sixty-eight million, eight hundred thirty-nine thousand, five hundred one".