72842353 has 2 divisors, whose sum is σ = 72842354. Its totient is φ = 72842352.

The previous prime is 72842351. The next prime is 72842369. The reversal of 72842353 is 35324827.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39526369 + 33315984 = 6287^2 + 5772^2 .

It is a cyclic number.

It is not a de Polignac number, because 72842353 - 2¹ = 72842351 is a prime.

Together with 72842351, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (72842351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36421176 + 36421177.

It is an arithmetic number, because the mean of its divisors is an integer number (36421177).

Almost surely, 2^72842353 is an apocalyptic number.

It is an amenable number.

72842353 is a deficient number, since it is larger than the sum of its proper divisors (1).

72842353 is an equidigital number, since it uses as much as digits as its factorization.

72842353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 34.

The square root of 72842353 is about 8534.7731662886. The cubic root of 72842353 is about 417.6328533659.

The spelling of 72842353 in words is "seventy-two million, eight hundred forty-two thousand, three hundred fifty-three".