72848513 has 4 divisors (see below), whose sum is σ = 74625348. Its totient is φ = 71071680.

The previous prime is 72848509. The next prime is 72848537. The reversal of 72848513 is 31584827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31584827 = 17 ⋅1857931.

It can be written as a sum of positive squares in 2 ways, for example, as 1056784 + 71791729 = 1028^2 + 8473^2 .

It is a cyclic number.

It is not a de Polignac number, because 72848513 - 2² = 72848509 is a prime.

It is a super-2 number, since 2×72848513² = 10613811692622338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72848813) 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 3 ways as a sum of consecutive naturals, for example, 888356 + ... + 888437.

It is an arithmetic number, because the mean of its divisors is an integer number (18656337).

Almost surely, 2^72848513 is an apocalyptic number.

It is an amenable number.

72848513 is a deficient number, since it is larger than the sum of its proper divisors (1776835).

72848513 is a wasteful number, since it uses less digits than its factorization.

72848513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776834.

The product of its digits is 53760, while the sum is 38.

The square root of 72848513 is about 8535.1340352686. The cubic root of 72848513 is about 417.6446255733.

The spelling of 72848513 in words is "seventy-two million, eight hundred forty-eight thousand, five hundred thirteen".