30393213 has 4 divisors (see below), whose sum is σ = 40524288. Its totient is φ = 20262140.

The previous prime is 30393211. The next prime is 30393227. The reversal of 30393213 is 31239303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31239303 = 3 ⋅10413101.

It is a cyclic number.

It is not a de Polignac number, because 30393213 - 2¹ = 30393211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30393211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5065533 + ... + 5065538.

It is an arithmetic number, because the mean of its divisors is an integer number (10131072).

Almost surely, 2^30393213 is an apocalyptic number.

It is an amenable number.

30393213 is a deficient number, since it is larger than the sum of its proper divisors (10131075).

30393213 is a wasteful number, since it uses less digits than its factorization.

30393213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10131074.

The product of its (nonzero) digits is 1458, while the sum is 24.

The square root of 30393213 is about 5513.0039905663. The cubic root of 30393213 is about 312.0749224245.

The spelling of 30393213 in words is "thirty million, three hundred ninety-three thousand, two hundred thirteen".