72698753 has 2 divisors, whose sum is σ = 72698754. Its totient is φ = 72698752.

The previous prime is 72698741. The next prime is 72698779. The reversal of 72698753 is 35789627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50580544 + 22118209 = 7112^2 + 4703^2 .

It is an emirp because it is prime and its reverse (35789627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72698753 - 2²⁰ = 71650177 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 72698698 and 72698707.

It is not a weakly prime, because it can be changed into another prime (72698053) 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 as a sum of consecutive naturals, namely, 36349376 + 36349377.

It is an arithmetic number, because the mean of its divisors is an integer number (36349377).

Almost surely, 2^72698753 is an apocalyptic number.

It is an amenable number.

72698753 is a deficient number, since it is larger than the sum of its proper divisors (1).

72698753 is an equidigital number, since it uses as much as digits as its factorization.

72698753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 47.

The square root of 72698753 is about 8526.3563730353. The cubic root of 72698753 is about 417.3582350623.

The spelling of 72698753 in words is "seventy-two million, six hundred ninety-eight thousand, seven hundred fifty-three".