72843071 has 8 divisors (see below), whose sum is σ = 83433504. Its totient is φ = 62298720.

The previous prime is 72843061. The next prime is 72843073. The reversal of 72843071 is 17034827.

It is a happy number.

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 72843071 - 2²⁶ = 5734207 is a prime.

It is a super-2 number, since 2×72843071² = 10612225985422082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72843073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8060 + ... + 14513.

It is an arithmetic number, because the mean of its divisors is an integer number (10429188).

Almost surely, 2^72843071 is an apocalyptic number.

72843071 is a deficient number, since it is larger than the sum of its proper divisors (10590433).

72843071 is a wasteful number, since it uses less digits than its factorization.

72843071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23041.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 72843071 is about 8534.8152294001. The cubic root of 72843071 is about 417.6342255502.

Adding to 72843071 its reverse (17034827), we get a palindrome (89877898).

The spelling of 72843071 in words is "seventy-two million, eight hundred forty-three thousand, seventy-one".