30199397 has 2 divisors, whose sum is σ = 30199398. Its totient is φ = 30199396.

The previous prime is 30199387. The next prime is 30199423. The reversal of 30199397 is 79399103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25897921 + 4301476 = 5089^2 + 2074^2 .

It is a cyclic number.

It is not a de Polignac number, because 30199397 - 2¹⁰ = 30198373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30199387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15099698 + 15099699.

It is an arithmetic number, because the mean of its divisors is an integer number (15099699).

Almost surely, 2^30199397 is an apocalyptic number.

It is an amenable number.

30199397 is a deficient number, since it is larger than the sum of its proper divisors (1).

30199397 is an equidigital number, since it uses as much as digits as its factorization.

30199397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45927, while the sum is 41.

The square root of 30199397 is about 5495.3978017974. The cubic root of 30199397 is about 311.4101452719.

The spelling of 30199397 in words is "thirty million, one hundred ninety-nine thousand, three hundred ninety-seven".