71730733 has 8 divisors (see below), whose sum is σ = 72277920. Its totient is φ = 71186160.

The previous prime is 71730731. The next prime is 71730739. The reversal of 71730733 is 33703717.

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 71730733 - 2¹ = 71730731 is a prime.

It is a super-3 number, since 3×71730733³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71730695 and 71730704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71730731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125338 + ... + 125908.

It is an arithmetic number, because the mean of its divisors is an integer number (9034740).

Almost surely, 2^71730733 is an apocalyptic number.

It is an amenable number.

71730733 is a deficient number, since it is larger than the sum of its proper divisors (547187).

71730733 is a wasteful number, since it uses less digits than its factorization.

71730733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307.

The product of its (nonzero) digits is 9261, while the sum is 31.

The square root of 71730733 is about 8469.3998016388. The cubic root of 71730733 is about 415.4975075670.

The spelling of 71730733 in words is "seventy-one million, seven hundred thirty thousand, seven hundred thirty-three".