73112729 has 8 divisors (see below), whose sum is σ = 73872000. Its totient is φ = 72357712.

The previous prime is 73112723. The next prime is 73112737. The reversal of 73112729 is 92721137.

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 73112729 - 2¹⁶ = 73047193 is a prime.

It is a super-2 number, since 2×73112729² = 10690942283654882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73112695 and 73112704.

It is not an unprimeable number, because it can be changed into a prime (73112723) 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, 41927 + ... + 43635.

It is an arithmetic number, because the mean of its divisors is an integer number (9234000).

Almost surely, 2^73112729 is an apocalyptic number.

It is an amenable number.

73112729 is a deficient number, since it is larger than the sum of its proper divisors (759271).

73112729 is a wasteful number, since it uses less digits than its factorization.

73112729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127.

The product of its digits is 5292, while the sum is 32.

The square root of 73112729 is about 8550.5981662104. The cubic root of 73112729 is about 418.1489380962.

The spelling of 73112729 in words is "seventy-three million, one hundred twelve thousand, seven hundred twenty-nine".