30796189 has 2 divisors, whose sum is σ = 30796190. Its totient is φ = 30796188.

The previous prime is 30796159. The next prime is 30796193. The reversal of 30796189 is 98169703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28708164 + 2088025 = 5358^2 + 1445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30796189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30796159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15398094 + 15398095.

It is an arithmetic number, because the mean of its divisors is an integer number (15398095).

Almost surely, 2^30796189 is an apocalyptic number.

It is an amenable number.

30796189 is a deficient number, since it is larger than the sum of its proper divisors (1).

30796189 is an equidigital number, since it uses as much as digits as its factorization.

30796189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 30796189 is about 5549.4314123160. The cubic root of 30796189 is about 313.4481123431.

The spelling of 30796189 in words is "thirty million, seven hundred ninety-six thousand, one hundred eighty-nine".