30636469 has 2 divisors, whose sum is σ = 30636470. Its totient is φ = 30636468.

The previous prime is 30636467. The next prime is 30636479. The reversal of 30636469 is 96463603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29844369 + 792100 = 5463^2 + 890^2 .

It is a cyclic number.

It is not a de Polignac number, because 30636469 - 2¹ = 30636467 is a prime.

It is a super-2 number, since 2×30636469² = 1877186465575922, which contains 22 as substring.

Together with 30636467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30636461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15318234 + 15318235.

It is an arithmetic number, because the mean of its divisors is an integer number (15318235).

Almost surely, 2^30636469 is an apocalyptic number.

It is an amenable number.

30636469 is a deficient number, since it is larger than the sum of its proper divisors (1).

30636469 is an equidigital number, since it uses as much as digits as its factorization.

30636469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 37.

The square root of 30636469 is about 5535.0220415099. The cubic root of 30636469 is about 312.9052883318.

The spelling of 30636469 in words is "thirty million, six hundred thirty-six thousand, four hundred sixty-nine".