73998523 has 2 divisors, whose sum is σ = 73998524. Its totient is φ = 73998522.

The previous prime is 73998497. The next prime is 73998527. The reversal of 73998523 is 32589937.

It is a strong prime.

It is an emirp because it is prime and its reverse (32589937) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73998523 - 2⁹ = 73998011 is a prime.

It is not a weakly prime, because it can be changed into another prime (73998527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36999261 + 36999262.

It is an arithmetic number, because the mean of its divisors is an integer number (36999262).

Almost surely, 2^73998523 is an apocalyptic number.

73998523 is a deficient number, since it is larger than the sum of its proper divisors (1).

73998523 is an equidigital number, since it uses as much as digits as its factorization.

73998523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 46.

The square root of 73998523 is about 8602.2394177330. The cubic root of 73998523 is about 419.8308521447.

The spelling of 73998523 in words is "seventy-three million, nine hundred ninety-eight thousand, five hundred twenty-three".