30790481 has 2 divisors, whose sum is σ = 30790482. Its totient is φ = 30790480.

The previous prime is 30790447. The next prime is 30790483. The reversal of 30790481 is 18409703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21939856 + 8850625 = 4684^2 + 2975^2 .

It is a cyclic number.

It is not a de Polignac number, because 30790481 - 2¹⁰ = 30789457 is a prime.

It is a super-2 number, since 2×30790481² = 1896107440422722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 30790483, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (30790483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15395240 + 15395241.

It is an arithmetic number, because the mean of its divisors is an integer number (15395241).

Almost surely, 2^30790481 is an apocalyptic number.

It is an amenable number.

30790481 is a deficient number, since it is larger than the sum of its proper divisors (1).

30790481 is an equidigital number, since it uses as much as digits as its factorization.

30790481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 30790481 is about 5548.9171015613. The cubic root of 30790481 is about 313.4287455271.

The spelling of 30790481 in words is "thirty million, seven hundred ninety thousand, four hundred eighty-one".