72700853 has 2 divisors, whose sum is σ = 72700854. Its totient is φ = 72700852.

The previous prime is 72700843. The next prime is 72700867. The reversal of 72700853 is 35800727.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40233649 + 32467204 = 6343^2 + 5698^2 .

It is an emirp because it is prime and its reverse (35800727) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72700853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72700843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36350426 + 36350427.

It is an arithmetic number, because the mean of its divisors is an integer number (36350427).

Almost surely, 2^72700853 is an apocalyptic number.

It is an amenable number.

72700853 is a deficient number, since it is larger than the sum of its proper divisors (1).

72700853 is an equidigital number, since it uses as much as digits as its factorization.

72700853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 72700853 is about 8526.4795197080. The cubic root of 72700853 is about 417.3622536725.

The spelling of 72700853 in words is "seventy-two million, seven hundred thousand, eight hundred fifty-three".