30001047 has 4 divisors (see below), whose sum is σ = 40001400. Its totient is φ = 20000696.

The previous prime is 30001031. The next prime is 30001063. The reversal of 30001047 is 74010003.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (30001031) and next prime (30001063).

It is a cyclic number.

It is not a de Polignac number, because 30001047 - 2⁴ = 30001031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30001067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5000172 + ... + 5000177.

It is an arithmetic number, because the mean of its divisors is an integer number (10000350).

Almost surely, 2^30001047 is an apocalyptic number.

30001047 is a deficient number, since it is larger than the sum of its proper divisors (10000353).

30001047 is a wasteful number, since it uses less digits than its factorization.

30001047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000352.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 30001047 is about 5477.3211518040. The cubic root of 30001047 is about 310.7268653005.

The spelling of 30001047 in words is "thirty million, one thousand, forty-seven".