30673221 has 8 divisors (see below), whose sum is σ = 40923264. Its totient is φ = 20436000.

The previous prime is 30673211. The next prime is 30673241. The reversal of 30673221 is 12237603.

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

It is not a de Polignac number, because 30673221 - 2⁶ = 30673157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30673191 and 30673200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30673211) 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, 7300 + ... + 10706.

It is an arithmetic number, because the mean of its divisors is an integer number (5115408).

Almost surely, 2^30673221 is an apocalyptic number.

It is an amenable number.

30673221 is a deficient number, since it is larger than the sum of its proper divisors (10250043).

30673221 is a wasteful number, since it uses less digits than its factorization.

30673221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6411.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 30673221 is about 5538.3409970857. The cubic root of 30673221 is about 313.0303604012.

The spelling of 30673221 in words is "thirty million, six hundred seventy-three thousand, two hundred twenty-one".