30528469 has 2 divisors, whose sum is σ = 30528470. Its totient is φ = 30528468.

The previous prime is 30528467. The next prime is 30528539. The reversal of 30528469 is 96482503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28483569 + 2044900 = 5337^2 + 1430^2 .

It is a cyclic number.

It is not a de Polignac number, because 30528469 - 2¹ = 30528467 is a prime.

It is a super-2 number, since 2×30528469² = 1863974838967922, which contains 22 as substring.

Together with 30528467, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30528467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15264234 + 15264235.

It is an arithmetic number, because the mean of its divisors is an integer number (15264235).

Almost surely, 2^30528469 is an apocalyptic number.

It is an amenable number.

30528469 is a deficient number, since it is larger than the sum of its proper divisors (1).

30528469 is an equidigital number, since it uses as much as digits as its factorization.

30528469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 30528469 is about 5525.2573695711. The cubic root of 30528469 is about 312.5371697654.

The spelling of 30528469 in words is "thirty million, five hundred twenty-eight thousand, four hundred sixty-nine".