30668023 has 4 divisors (see below), whose sum is σ = 31187880. Its totient is φ = 30148168.

The previous prime is 30668003. The next prime is 30668063. The reversal of 30668023 is 32086603.

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 30668023 - 2⁵ = 30667991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30667982 and 30668000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30668003) 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, 259840 + ... + 259957.

It is an arithmetic number, because the mean of its divisors is an integer number (7796970).

Almost surely, 2^30668023 is an apocalyptic number.

30668023 is a deficient number, since it is larger than the sum of its proper divisors (519857).

30668023 is an equidigital number, since it uses as much as digits as its factorization.

30668023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519856.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 30668023 is about 5537.8717031004. The cubic root of 30668023 is about 313.0126769662.

The spelling of 30668023 in words is "thirty million, six hundred sixty-eight thousand, twenty-three".