68619073 has 2 divisors, whose sum is σ = 68619074. Its totient is φ = 68619072.

The previous prime is 68619059. The next prime is 68619101. The reversal of 68619073 is 37091686.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52881984 + 15737089 = 7272^2 + 3967^2 .

It is a cyclic number.

It is not a de Polignac number, because 68619073 - 2⁵ = 68619041 is a prime.

It is not a weakly prime, because it can be changed into another prime (68689073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34309536 + 34309537.

It is an arithmetic number, because the mean of its divisors is an integer number (34309537).

Almost surely, 2^68619073 is an apocalyptic number.

It is an amenable number.

68619073 is a deficient number, since it is larger than the sum of its proper divisors (1).

68619073 is an equidigital number, since it uses as much as digits as its factorization.

68619073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 68619073 is about 8283.6630182547. The cubic root of 68619073 is about 409.4004184672.

The spelling of 68619073 in words is "sixty-eight million, six hundred nineteen thousand, seventy-three".