30006473 has 6 divisors (see below), whose sum is σ = 34905546. Its totient is φ = 25719792.

The previous prime is 30006469. The next prime is 30006497. The reversal of 30006473 is 37460003.

It can be written as a sum of positive squares in only one way, i.e., 29506624 + 499849 = 5432^2 + 707^2 .

It is not a de Polignac number, because 30006473 - 2² = 30006469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30006413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306140 + ... + 306237.

It is an arithmetic number, because the mean of its divisors is an integer number (5817591).

Almost surely, 2^30006473 is an apocalyptic number.

It is an amenable number.

30006473 is a deficient number, since it is larger than the sum of its proper divisors (4899073).

30006473 is an equidigital number, since it uses as much as digits as its factorization.

30006473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612391 (or 612384 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 30006473 is about 5477.8164445334. The cubic root of 30006473 is about 310.7455968949.

Adding to 30006473 its reverse (37460003), we get a palindrome (67466476).

The spelling of 30006473 in words is "thirty million, six thousand, four hundred seventy-three".