30884489 has 2 divisors, whose sum is σ = 30884490. Its totient is φ = 30884488.

The previous prime is 30884473. The next prime is 30884501. The reversal of 30884489 is 98448803.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30614089 + 270400 = 5533^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 30884489 - 2⁴ = 30884473 is a prime.

It is a super-2 number, since 2×30884489² = 1907703321582242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (30884459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15442244 + 15442245.

It is an arithmetic number, because the mean of its divisors is an integer number (15442245).

Almost surely, 2^30884489 is an apocalyptic number.

It is an amenable number.

30884489 is a deficient number, since it is larger than the sum of its proper divisors (1).

30884489 is an equidigital number, since it uses as much as digits as its factorization.

30884489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 30884489 is about 5557.3814877152. The cubic root of 30884489 is about 313.7474032472.

The spelling of 30884489 in words is "thirty million, eight hundred eighty-four thousand, four hundred eighty-nine".