73243571 has 2 divisors, whose sum is σ = 73243572. Its totient is φ = 73243570.

The previous prime is 73243553. The next prime is 73243579. The reversal of 73243571 is 17534237.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73243571 is a prime.

It is not a weakly prime, because it can be changed into another prime (73243579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36621785 + 36621786.

It is an arithmetic number, because the mean of its divisors is an integer number (36621786).

Almost surely, 2^73243571 is an apocalyptic number.

73243571 is a deficient number, since it is larger than the sum of its proper divisors (1).

73243571 is an equidigital number, since it uses as much as digits as its factorization.

73243571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 32.

The square root of 73243571 is about 8558.2457898801. The cubic root of 73243571 is about 418.3982281968.

The spelling of 73243571 in words is "seventy-three million, two hundred forty-three thousand, five hundred seventy-one".