30904223 has 8 divisors (see below), whose sum is σ = 35662848. Its totient is φ = 26231544.

The previous prime is 30904199. The next prime is 30904253. The reversal of 30904223 is 32240903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30904223 - 2¹² = 30900127 is a prime.

It is a Duffinian number.

30904223 is a modest number, since divided by 4223 gives 309 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30904253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20711 + ... + 22152.

It is an arithmetic number, because the mean of its divisors is an integer number (4457856).

Almost surely, 2^30904223 is an apocalyptic number.

30904223 is a deficient number, since it is larger than the sum of its proper divisors (4758625).

30904223 is a wasteful number, since it uses less digits than its factorization.

30904223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42973.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 30904223 is about 5559.1566806486. The cubic root of 30904223 is about 313.8142131920.

The spelling of 30904223 in words is "thirty million, nine hundred four thousand, two hundred twenty-three".