73990043 has 8 divisors (see below), whose sum is σ = 75404112. Its totient is φ = 72585216.

The previous prime is 73990013. The next prime is 73990093. The reversal of 73990043 is 34009937.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73990043 - 2⁸ = 73989787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73989985 and 73990012.

It is not an unprimeable number, because it can be changed into a prime (73990013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15071 + ... + 19367.

It is an arithmetic number, because the mean of its divisors is an integer number (9425514).

Almost surely, 2^73990043 is an apocalyptic number.

73990043 is a deficient number, since it is larger than the sum of its proper divisors (1414069).

73990043 is a wasteful number, since it uses less digits than its factorization.

73990043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 73990043 is about 8601.7465087039. The cubic root of 73990043 is about 419.8148144299.

The spelling of 73990043 in words is "seventy-three million, nine hundred ninety thousand, forty-three".