72030471 has 16 divisors (see below), whose sum is σ = 97566336. Its totient is φ = 47262176.

The previous prime is 72030467. The next prime is 72030499. The reversal of 72030471 is 17403027.

It is a cyclic number.

It is not a de Polignac number, because 72030471 - 2² = 72030467 is a prime.

It is a super-3 number, since 3×72030471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72030401) 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 15 ways as a sum of consecutive naturals, for example, 109981 + ... + 110633.

It is an arithmetic number, because the mean of its divisors is an integer number (6097896).

Almost surely, 2^72030471 is an apocalyptic number.

72030471 is a deficient number, since it is larger than the sum of its proper divisors (25535865).

72030471 is a wasteful number, since it uses less digits than its factorization.

72030471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 72030471 is about 8487.0767052030. The cubic root of 72030471 is about 416.0754435872.

Adding to 72030471 its reverse (17403027), we get a palindrome (89433498).

The spelling of 72030471 in words is "seventy-two million, thirty thousand, four hundred seventy-one".