72848945 has 32 divisors (see below), whose sum is σ = 100826880. Its totient is φ = 50077440.

The previous prime is 72848933. The next prime is 72848947. The reversal of 72848945 is 54984827.

It is a happy number.

It is not a de Polignac number, because 72848945 - 2⁴ = 72848929 is a prime.

It is a super-2 number, since 2×72848945² = 10613937575226050, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72848945.

It is not an unprimeable number, because it can be changed into a prime (72848947) 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 31 ways as a sum of consecutive naturals, for example, 74852 + ... + 75818.

It is an arithmetic number, because the mean of its divisors is an integer number (3150840).

Almost surely, 2^72848945 is an apocalyptic number.

It is an amenable number.

72848945 is a deficient number, since it is larger than the sum of its proper divisors (27977935).

72848945 is a wasteful number, since it uses less digits than its factorization.

72848945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065.

The product of its digits is 645120, while the sum is 47.

The square root of 72848945 is about 8535.1593423907. The cubic root of 72848945 is about 417.6454511317.

The spelling of 72848945 in words is "seventy-two million, eight hundred forty-eight thousand, nine hundred forty-five".