72996853 has 2 divisors, whose sum is σ = 72996854. Its totient is φ = 72996852.

The previous prime is 72996839. The next prime is 72996881. The reversal of 72996853 is 35869927.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62615569 + 10381284 = 7913^2 + 3222^2 .

It is an emirp because it is prime and its reverse (35869927) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72996853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72996797 and 72996806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72996883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36498426 + 36498427.

It is an arithmetic number, because the mean of its divisors is an integer number (36498427).

Almost surely, 2^72996853 is an apocalyptic number.

It is an amenable number.

72996853 is a deficient number, since it is larger than the sum of its proper divisors (1).

72996853 is an equidigital number, since it uses as much as digits as its factorization.

72996853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The square root of 72996853 is about 8543.8195790876. The cubic root of 72996853 is about 417.9279138986.

The spelling of 72996853 in words is "seventy-two million, nine hundred ninety-six thousand, eight hundred fifty-three".