73923839 has 16 divisors (see below), whose sum is σ = 82083456. Its totient is φ = 66016800.

The previous prime is 73923833. The next prime is 73923841. The reversal of 73923839 is 93832937.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73923839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73923839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73923833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212864 + ... + 213210.

It is an arithmetic number, because the mean of its divisors is an integer number (5130216).

Almost surely, 2^73923839 is an apocalyptic number.

73923839 is a deficient number, since it is larger than the sum of its proper divisors (8159617).

73923839 is a wasteful number, since it uses less digits than its factorization.

73923839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646.

The product of its digits is 244944, while the sum is 44.

The square root of 73923839 is about 8597.8973592385. The cubic root of 73923839 is about 419.6895646326.

The spelling of 73923839 in words is "seventy-three million, nine hundred twenty-three thousand, eight hundred thirty-nine".