30997227 has 8 divisors (see below), whose sum is σ = 43504960. Its totient is φ = 19577160.

The previous prime is 30997193. The next prime is 30997237. The reversal of 30997227 is 72279903.

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

It is not a de Polignac number, because 30997227 - 2¹¹ = 30995179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30997237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271849 + ... + 271962.

It is an arithmetic number, because the mean of its divisors is an integer number (5438120).

Almost surely, 2^30997227 is an apocalyptic number.

30997227 is a deficient number, since it is larger than the sum of its proper divisors (12507733).

30997227 is a wasteful number, since it uses less digits than its factorization.

30997227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543833.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 30997227 is about 5567.5153345096. The cubic root of 30997227 is about 314.1286982410.

The spelling of 30997227 in words is "thirty million, nine hundred ninety-seven thousand, two hundred twenty-seven".