30027493 has 2 divisors, whose sum is σ = 30027494. Its totient is φ = 30027492.

The previous prime is 30027479. The next prime is 30027509. The reversal of 30027493 is 39472003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21372129 + 8655364 = 4623^2 + 2942^2 .

It is a cyclic number.

It is not a de Polignac number, because 30027493 - 2²¹ = 27930341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30027463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15013746 + 15013747.

It is an arithmetic number, because the mean of its divisors is an integer number (15013747).

Almost surely, 2^30027493 is an apocalyptic number.

It is an amenable number.

30027493 is a deficient number, since it is larger than the sum of its proper divisors (1).

30027493 is an equidigital number, since it uses as much as digits as its factorization.

30027493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 30027493 is about 5479.7347563545. The cubic root of 30027493 is about 310.8181406626.

Adding to 30027493 its reverse (39472003), we get a palindrome (69499496).

The spelling of 30027493 in words is "thirty million, twenty-seven thousand, four hundred ninety-three".