30472319 has 2 divisors, whose sum is σ = 30472320. Its totient is φ = 30472318.

The previous prime is 30472289. The next prime is 30472327. The reversal of 30472319 is 91327403.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30472319 - 2⁸ = 30472063 is a prime.

It is a super-3 number, since 3×30472319³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30472291 and 30472300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30472339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15236159 + 15236160.

It is an arithmetic number, because the mean of its divisors is an integer number (15236160).

Almost surely, 2^30472319 is an apocalyptic number.

30472319 is a deficient number, since it is larger than the sum of its proper divisors (1).

30472319 is an equidigital number, since it uses as much as digits as its factorization.

30472319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 30472319 is about 5520.1738197271. The cubic root of 30472319 is about 312.3454390876.

The spelling of 30472319 in words is "thirty million, four hundred seventy-two thousand, three hundred nineteen".