30946893 has 4 divisors (see below), whose sum is σ = 41262528. Its totient is φ = 20631260.

The previous prime is 30946889. The next prime is 30946913. The reversal of 30946893 is 39864903.

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.

It is a cyclic number.

It is not a de Polignac number, because 30946893 - 2² = 30946889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30946843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5157813 + ... + 5157818.

It is an arithmetic number, because the mean of its divisors is an integer number (10315632).

Almost surely, 2^30946893 is an apocalyptic number.

It is an amenable number.

30946893 is a deficient number, since it is larger than the sum of its proper divisors (10315635).

30946893 is a wasteful number, since it uses less digits than its factorization.

30946893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10315634.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 30946893 is about 5562.9931691491. The cubic root of 30946893 is about 313.9585763576.

The spelling of 30946893 in words is "thirty million, nine hundred forty-six thousand, eight hundred ninety-three".