73664207 has 2 divisors, whose sum is σ = 73664208. Its totient is φ = 73664206.

The previous prime is 73664189. The next prime is 73664221. The reversal of 73664207 is 70246637.

It is a strong prime.

It is an emirp because it is prime and its reverse (70246637) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73664207 - 2⁸ = 73663951 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73664267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36832103 + 36832104.

It is an arithmetic number, because the mean of its divisors is an integer number (36832104).

Almost surely, 2^73664207 is an apocalyptic number.

73664207 is a deficient number, since it is larger than the sum of its proper divisors (1).

73664207 is an equidigital number, since it uses as much as digits as its factorization.

73664207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 73664207 is about 8582.7855035530. The cubic root of 73664207 is about 419.1976499848.

The spelling of 73664207 in words is "seventy-three million, six hundred sixty-four thousand, two hundred seven".