73689601 has 2 divisors, whose sum is σ = 73689602. Its totient is φ = 73689600.

The previous prime is 73689491. The next prime is 73689613. The reversal of 73689601 is 10698637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49914225 + 23775376 = 7065^2 + 4876^2 .

It is an emirp because it is prime and its reverse (10698637) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73689601 - 2¹¹ = 73687553 is a prime.

It is not a weakly prime, because it can be changed into another prime (73689001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36844800 + 36844801.

It is an arithmetic number, because the mean of its divisors is an integer number (36844801).

Almost surely, 2^73689601 is an apocalyptic number.

It is an amenable number.

73689601 is a deficient number, since it is larger than the sum of its proper divisors (1).

73689601 is an equidigital number, since it uses as much as digits as its factorization.

73689601 is an odious number, because the sum of its binary digits is odd.

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

The square root of 73689601 is about 8584.2647326373. The cubic root of 73689601 is about 419.2458139555.

The spelling of 73689601 in words is "seventy-three million, six hundred eighty-nine thousand, six hundred one".