73920001 has 8 divisors (see below), whose sum is σ = 75487464. Its totient is φ = 72359040.

The previous prime is 73919941. The next prime is 73920023. The reversal of 73920001 is 10002937.

It can be written as a sum of positive squares in 4 ways, for example, as 389376 + 73530625 = 624^2 + 8575^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73920001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73920031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26275 + ... + 28951.

It is an arithmetic number, because the mean of its divisors is an integer number (9435933).

Almost surely, 2^73920001 is an apocalyptic number.

It is an amenable number.

73920001 is a deficient number, since it is larger than the sum of its proper divisors (1567463).

73920001 is a wasteful number, since it uses less digits than its factorization.

73920001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3251.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 73920001 is about 8597.6741622371. The cubic root of 73920001 is about 419.6823013174.

Adding to 73920001 its reverse (10002937), we get a palindrome (83922938).

The spelling of 73920001 in words is "seventy-three million, nine hundred twenty thousand, one".