30950939 has 4 divisors (see below), whose sum is σ = 32296656. Its totient is φ = 29605224.

The previous prime is 30950921. The next prime is 30950947. The reversal of 30950939 is 93905903.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30950939 - 2¹² = 30946843 is a prime.

It is a super-3 number, since 3×30950939³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30953939) 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, 672824 + ... + 672869.

It is an arithmetic number, because the mean of its divisors is an integer number (8074164).

Almost surely, 2^30950939 is an apocalyptic number.

30950939 is a deficient number, since it is larger than the sum of its proper divisors (1345717).

30950939 is a wasteful number, since it uses less digits than its factorization.

30950939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345716.

The product of its (nonzero) digits is 32805, while the sum is 38.

The square root of 30950939 is about 5563.3568104158. The cubic root of 30950939 is about 313.9722580870.

The spelling of 30950939 in words is "thirty million, nine hundred fifty thousand, nine hundred thirty-nine".