30935213 has 4 divisors (see below), whose sum is σ = 30952608. Its totient is φ = 30917820.

The previous prime is 30935209. The next prime is 30935227. The reversal of 30935213 is 31253903.

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: 31253903 = 191 ⋅163633.

It is a cyclic number.

It is not a de Polignac number, because 30935213 - 2² = 30935209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30935813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5681 + ... + 9702.

It is an arithmetic number, because the mean of its divisors is an integer number (7738152).

Almost surely, 2^30935213 is an apocalyptic number.

It is an amenable number.

30935213 is a deficient number, since it is larger than the sum of its proper divisors (17395).

30935213 is a wasteful number, since it uses less digits than its factorization.

30935213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17394.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 30935213 is about 5561.9432755108. The cubic root of 30935213 is about 313.9190732255.

The spelling of 30935213 in words is "thirty million, nine hundred thirty-five thousand, two hundred thirteen".