30978934 has 8 divisors (see below), whose sum is σ = 53106768. Its totient is φ = 13276680.

The previous prime is 30978929. The next prime is 30978943. The reversal of 30978934 is 43987903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106377 + ... + 1106404.

It is an arithmetic number, because the mean of its divisors is an integer number (6638346).

Almost surely, 2^30978934 is an apocalyptic number.

30978934 is a deficient number, since it is larger than the sum of its proper divisors (22127834).

30978934 is a wasteful number, since it uses less digits than its factorization.

30978934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212790.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 30978934 is about 5565.8722586851. The cubic root of 30978934 is about 314.0668917762.

The spelling of 30978934 in words is "thirty million, nine hundred seventy-eight thousand, nine hundred thirty-four".