30884197 has 2 divisors, whose sum is σ = 30884198. Its totient is φ = 30884196.

The previous prime is 30884149. The next prime is 30884201. The reversal of 30884197 is 79148803.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26532801 + 4351396 = 5151^2 + 2086^2 .

It is an emirp because it is prime and its reverse (79148803) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30884197 - 2²³ = 22495589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30884137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15442098 + 15442099.

It is an arithmetic number, because the mean of its divisors is an integer number (15442099).

Almost surely, 2^30884197 is an apocalyptic number.

It is an amenable number.

30884197 is a deficient number, since it is larger than the sum of its proper divisors (1).

30884197 is an equidigital number, since it uses as much as digits as its factorization.

30884197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 30884197 is about 5557.3552162877. The cubic root of 30884197 is about 313.7464144604.

The spelling of 30884197 in words is "thirty million, eight hundred eighty-four thousand, one hundred ninety-seven".