68790901 has 2 divisors, whose sum is σ = 68790902. Its totient is φ = 68790900.

The previous prime is 68790899. The next prime is 68790923. The reversal of 68790901 is 10909786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38254225 + 30536676 = 6185^2 + 5526^2 .

It is a cyclic number.

It is not a de Polignac number, because 68790901 - 2¹ = 68790899 is a prime.

Together with 68790899, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68790941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34395450 + 34395451.

It is an arithmetic number, because the mean of its divisors is an integer number (34395451).

Almost surely, 2^68790901 is an apocalyptic number.

It is an amenable number.

68790901 is a deficient number, since it is larger than the sum of its proper divisors (1).

68790901 is an equidigital number, since it uses as much as digits as its factorization.

68790901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 68790901 is about 8294.0280322651. The cubic root of 68790901 is about 409.7418581269.

The spelling of 68790901 in words is "sixty-eight million, seven hundred ninety thousand, nine hundred one".