30748489 has 2 divisors, whose sum is σ = 30748490. Its totient is φ = 30748488.

The previous prime is 30748469. The next prime is 30748507. The reversal of 30748489 is 98484703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24950025 + 5798464 = 4995^2 + 2408^2 .

It is a cyclic number.

It is not a de Polignac number, because 30748489 - 2⁵ = 30748457 is a prime.

It is not a weakly prime, because it can be changed into another prime (30748409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15374244 + 15374245.

It is an arithmetic number, because the mean of its divisors is an integer number (15374245).

Almost surely, 2^30748489 is an apocalyptic number.

It is an amenable number.

30748489 is a deficient number, since it is larger than the sum of its proper divisors (1).

30748489 is an equidigital number, since it uses as much as digits as its factorization.

30748489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 30748489 is about 5545.1320092492. The cubic root of 30748489 is about 313.2861961937.

The spelling of 30748489 in words is "thirty million, seven hundred forty-eight thousand, four hundred eighty-nine".