72063571 has 8 divisors (see below), whose sum is σ = 74037744. Its totient is φ = 70103040.

The previous prime is 72063569. The next prime is 72063581. The reversal of 72063571 is 17536027.

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 72063571 - 2¹ = 72063569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72063581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7791 + ... + 14311.

It is an arithmetic number, because the mean of its divisors is an integer number (9254718).

Almost surely, 2^72063571 is an apocalyptic number.

72063571 is a deficient number, since it is larger than the sum of its proper divisors (1974173).

72063571 is a wasteful number, since it uses less digits than its factorization.

72063571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6821.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 72063571 is about 8489.0265048473. The cubic root of 72063571 is about 416.1391665643.

Adding to 72063571 its reverse (17536027), we get a palindrome (89599598).

The spelling of 72063571 in words is "seventy-two million, sixty-three thousand, five hundred seventy-one".