68394461 has 2 divisors, whose sum is σ = 68394462. Its totient is φ = 68394460.

The previous prime is 68394457. The next prime is 68394497. The reversal of 68394461 is 16449386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57668836 + 10725625 = 7594^2 + 3275^2 .

It is a cyclic number.

It is not a de Polignac number, because 68394461 - 2² = 68394457 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68390461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34197230 + 34197231.

It is an arithmetic number, because the mean of its divisors is an integer number (34197231).

Almost surely, 2^68394461 is an apocalyptic number.

It is an amenable number.

68394461 is a deficient number, since it is larger than the sum of its proper divisors (1).

68394461 is an equidigital number, since it uses as much as digits as its factorization.

68394461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 41.

The square root of 68394461 is about 8270.0943767287. The cubic root of 68394461 is about 408.9532310229.

The spelling of 68394461 in words is "sixty-eight million, three hundred ninety-four thousand, four hundred sixty-one".