73539423 has 6 divisors (see below), whose sum is σ = 106223624. Its totient is φ = 49026276.

The previous prime is 73539419. The next prime is 73539437. The reversal of 73539423 is 32493537.

It is not a de Polignac number, because 73539423 - 2² = 73539419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73539023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4085515 + ... + 4085532.

Almost surely, 2^73539423 is an apocalyptic number.

73539423 is a deficient number, since it is larger than the sum of its proper divisors (32684201).

73539423 is a wasteful number, since it uses less digits than its factorization.

73539423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8171053 (or 8171050 counting only the distinct ones).

The product of its digits is 68040, while the sum is 36.

The square root of 73539423 is about 8575.5129875711. The cubic root of 73539423 is about 418.9608152722.

The spelling of 73539423 in words is "seventy-three million, five hundred thirty-nine thousand, four hundred twenty-three".