30985966 has 8 divisors (see below), whose sum is σ = 50704344. Its totient is φ = 14084520.

The previous prime is 30985963. The next prime is 30985993. The reversal of 30985966 is 66958903.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30985961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704205 + ... + 704248.

It is an arithmetic number, because the mean of its divisors is an integer number (6338043).

Almost surely, 2^30985966 is an apocalyptic number.

30985966 is a deficient number, since it is larger than the sum of its proper divisors (19718378).

30985966 is a wasteful number, since it uses less digits than its factorization.

30985966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408466.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 30985966 is about 5566.5039297570. The cubic root of 30985966 is about 314.0906536365.

The spelling of 30985966 in words is "thirty million, nine hundred eighty-five thousand, nine hundred sixty-six".