68489461 has 2 divisors, whose sum is σ = 68489462. Its totient is φ = 68489460.

The previous prime is 68489459. The next prime is 68489467. The reversal of 68489461 is 16498486.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43639236 + 24850225 = 6606^2 + 4985^2 .

It is a cyclic number.

It is not a de Polignac number, because 68489461 - 2¹ = 68489459 is a prime.

Together with 68489459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68489467) 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, 34244730 + 34244731.

It is an arithmetic number, because the mean of its divisors is an integer number (34244731).

Almost surely, 2^68489461 is an apocalyptic number.

It is an amenable number.

68489461 is a deficient number, since it is larger than the sum of its proper divisors (1).

68489461 is an equidigital number, since it uses as much as digits as its factorization.

68489461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 46.

The square root of 68489461 is about 8275.8359698583. The cubic root of 68489461 is about 409.1424889561.

The spelling of 68489461 in words is "sixty-eight million, four hundred eighty-nine thousand, four hundred sixty-one".