30000493 has 2 divisors, whose sum is σ = 30000494. Its totient is φ = 30000492.

The previous prime is 30000473. The next prime is 30000511. The reversal of 30000493 is 39400003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24226084 + 5774409 = 4922^2 + 2403^2 .

It is a cyclic number.

It is not a de Polignac number, because 30000493 - 2¹⁷ = 29869421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30000493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30000473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15000246 + 15000247.

It is an arithmetic number, because the mean of its divisors is an integer number (15000247).

Almost surely, 2^30000493 is an apocalyptic number.

It is an amenable number.

30000493 is a deficient number, since it is larger than the sum of its proper divisors (1).

30000493 is an equidigital number, since it uses as much as digits as its factorization.

30000493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 30000493 is about 5477.2705794036. The cubic root of 30000493 is about 310.7249526590.

Adding to 30000493 its reverse (39400003), we get a palindrome (69400496).

The spelling of 30000493 in words is "thirty million, four hundred ninety-three", and thus it is an aban number.