72706733 has 8 divisors (see below), whose sum is σ = 79387776. Its totient is φ = 66037600.

The previous prime is 72706727. The next prime is 72706747. The reversal of 72706733 is 33760727.

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 72706733 - 2⁸ = 72706477 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 72706693 and 72706702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72706793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14060 + ... + 18522.

It is an arithmetic number, because the mean of its divisors is an integer number (9923472).

Almost surely, 2^72706733 is an apocalyptic number.

It is an amenable number.

72706733 is a deficient number, since it is larger than the sum of its proper divisors (6681043).

72706733 is a wasteful number, since it uses less digits than its factorization.

72706733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5955.

The product of its (nonzero) digits is 37044, while the sum is 35.

The square root of 72706733 is about 8526.8243209298. The cubic root of 72706733 is about 417.3735053694.

The spelling of 72706733 in words is "seventy-two million, seven hundred six thousand, seven hundred thirty-three".