30680963 has 4 divisors (see below), whose sum is σ = 30726960. Its totient is φ = 30634968.

The previous prime is 30680959. The next prime is 30680983. The reversal of 30680963 is 36908603.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36908603 = 3251 ⋅11353.

It is a cyclic number.

It is not a de Polignac number, because 30680963 - 2² = 30680959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30680983) 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, 21983 + ... + 23336.

It is an arithmetic number, because the mean of its divisors is an integer number (7681740).

Almost surely, 2^30680963 is an apocalyptic number.

30680963 is a deficient number, since it is larger than the sum of its proper divisors (45997).

30680963 is an equidigital number, since it uses as much as digits as its factorization.

30680963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45996.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 30680963 is about 5539.0398987550. The cubic root of 30680963 is about 313.0566947422.

The spelling of 30680963 in words is "thirty million, six hundred eighty thousand, nine hundred sixty-three".