30923243 has 4 divisors (see below), whose sum is σ = 33301968. Its totient is φ = 28544520.

The previous prime is 30923239. The next prime is 30923267. The reversal of 30923243 is 34232903.

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 30923243 - 2² = 30923239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30923273) 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, 1189343 + ... + 1189368.

It is an arithmetic number, because the mean of its divisors is an integer number (8325492).

Almost surely, 2^30923243 is an apocalyptic number.

30923243 is a deficient number, since it is larger than the sum of its proper divisors (2378725).

30923243 is a wasteful number, since it uses less digits than its factorization.

30923243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378724.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 30923243 is about 5560.8671086441. The cubic root of 30923243 is about 313.8785789613.

The spelling of 30923243 in words is "thirty million, nine hundred twenty-three thousand, two hundred forty-three".