30426197 has 2 divisors, whose sum is σ = 30426198. Its totient is φ = 30426196.

The previous prime is 30426167. The next prime is 30426203. The reversal of 30426197 is 79162403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27447121 + 2979076 = 5239^2 + 1726^2 .

It is an emirp because it is prime and its reverse (79162403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30426197 - 2¹⁰ = 30425173 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30426167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15213098 + 15213099.

It is an arithmetic number, because the mean of its divisors is an integer number (15213099).

Almost surely, 2^30426197 is an apocalyptic number.

It is an amenable number.

30426197 is a deficient number, since it is larger than the sum of its proper divisors (1).

30426197 is an equidigital number, since it uses as much as digits as its factorization.

30426197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 30426197 is about 5515.9946519191. The cubic root of 30426197 is about 312.1877739115.

The spelling of 30426197 in words is "thirty million, four hundred twenty-six thousand, one hundred ninety-seven".