73990073 has 8 divisors (see below), whose sum is σ = 74769408. Its totient is φ = 73214064.

The previous prime is 73990013. The next prime is 73990093. The reversal of 73990073 is 37009937.

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 73990073 - 2¹⁶ = 73924537 is a prime.

It is a Duffinian number.

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, 86315 + ... + 87167.

It is an arithmetic number, because the mean of its divisors is an integer number (9346176).

Almost surely, 2^73990073 is an apocalyptic number.

It is an amenable number.

73990073 is a deficient number, since it is larger than the sum of its proper divisors (779335).

73990073 is a wasteful number, since it uses less digits than its factorization.

73990073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663.

The product of its (nonzero) digits is 35721, while the sum is 38.

The square root of 73990073 is about 8601.7482525356. The cubic root of 73990073 is about 419.8148711692.

The spelling of 73990073 in words is "seventy-three million, nine hundred ninety thousand, seventy-three".