30497227 has 2 divisors, whose sum is σ = 30497228. Its totient is φ = 30497226.

The previous prime is 30497221. The next prime is 30497237. The reversal of 30497227 is 72279403.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30497227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30497192 and 30497201.

It is not a weakly prime, because it can be changed into another prime (30497221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15248613 + 15248614.

It is an arithmetic number, because the mean of its divisors is an integer number (15248614).

Almost surely, 2^30497227 is an apocalyptic number.

30497227 is a deficient number, since it is larger than the sum of its proper divisors (1).

30497227 is an equidigital number, since it uses as much as digits as its factorization.

30497227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 30497227 is about 5522.4294472632. The cubic root of 30497227 is about 312.4305193796.

The spelling of 30497227 in words is "thirty million, four hundred ninety-seven thousand, two hundred twenty-seven".