73356641 has 2 divisors, whose sum is σ = 73356642. Its totient is φ = 73356640.

The previous prime is 73356623. The next prime is 73356643. The reversal of 73356641 is 14665337.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71656225 + 1700416 = 8465^2 + 1304^2 .

It is a cyclic number.

It is not a de Polignac number, because 73356641 - 2¹⁰ = 73355617 is a prime.

Together with 73356643, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73356643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36678320 + 36678321.

It is an arithmetic number, because the mean of its divisors is an integer number (36678321).

Almost surely, 2^73356641 is an apocalyptic number.

It is an amenable number.

73356641 is a deficient number, since it is larger than the sum of its proper divisors (1).

73356641 is an equidigital number, since it uses as much as digits as its factorization.

73356641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 35.

The square root of 73356641 is about 8564.8491522034. The cubic root of 73356641 is about 418.6134187078.

The spelling of 73356641 in words is "seventy-three million, three hundred fifty-six thousand, six hundred forty-one".