30634397 has 2 divisors, whose sum is σ = 30634398. Its totient is φ = 30634396.

The previous prime is 30634379. The next prime is 30634453. The reversal of 30634397 is 79343603.

Together with previous prime (30634379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30591961 + 42436 = 5531^2 + 206^2 .

It is a cyclic number.

It is not a de Polignac number, because 30634397 - 2¹⁶ = 30568861 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 (30634337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15317198 + 15317199.

It is an arithmetic number, because the mean of its divisors is an integer number (15317199).

Almost surely, 2^30634397 is an apocalyptic number.

It is an amenable number.

30634397 is a deficient number, since it is larger than the sum of its proper divisors (1).

30634397 is an equidigital number, since it uses as much as digits as its factorization.

30634397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 35.

The square root of 30634397 is about 5534.8348665520. The cubic root of 30634397 is about 312.8982340553.

The spelling of 30634397 in words is "thirty million, six hundred thirty-four thousand, three hundred ninety-seven".