30974963 has 4 divisors (see below), whose sum is σ = 31000248. Its totient is φ = 30949680.

The previous prime is 30974953. The next prime is 30974981. The reversal of 30974963 is 36947903.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36947903 = 71 ⋅520393.

It is a cyclic number.

It is not a de Polignac number, because 30974963 - 2⁸ = 30974707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30974963.

It is not an unprimeable number, because it can be changed into a prime (30974953) 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, 10706 + ... + 13287.

It is an arithmetic number, because the mean of its divisors is an integer number (7750062).

Almost surely, 2^30974963 is an apocalyptic number.

30974963 is a deficient number, since it is larger than the sum of its proper divisors (25285).

30974963 is a wasteful number, since it uses less digits than its factorization.

30974963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25284.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 30974963 is about 5565.5155196981. The cubic root of 30974963 is about 314.0534717651.

The spelling of 30974963 in words is "thirty million, nine hundred seventy-four thousand, nine hundred sixty-three".