97828193 has 2 divisors, whose sum is σ = 97828194. Its totient is φ = 97828192.

The previous prime is 97828187. The next prime is 97828229. The reversal of 97828193 is 39182879.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59474944 + 38353249 = 7712^2 + 6193^2 .

It is an emirp because it is prime and its reverse (39182879) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97828193 is a prime.

It is not a weakly prime, because it can be changed into another prime (97828153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48914096 + 48914097.

It is an arithmetic number, because the mean of its divisors is an integer number (48914097).

Almost surely, 2^97828193 is an apocalyptic number.

It is an amenable number.

97828193 is a deficient number, since it is larger than the sum of its proper divisors (1).

97828193 is an equidigital number, since it uses as much as digits as its factorization.

97828193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 47.

The square root of 97828193 is about 9890.8135661330. The cubic root of 97828193 is about 460.7740480603.

The spelling of 97828193 in words is "ninety-seven million, eight hundred twenty-eight thousand, one hundred ninety-three".