30829047 has 4 divisors (see below), whose sum is σ = 41105400. Its totient is φ = 20552696.

The previous prime is 30829037. The next prime is 30829049. The reversal of 30829047 is 74092803.

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

It is a cyclic number.

It is not a de Polignac number, because 30829047 - 2⁴ = 30829031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30828999 and 30829017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30829049) 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 3 ways as a sum of consecutive naturals, for example, 5138172 + ... + 5138177.

It is an arithmetic number, because the mean of its divisors is an integer number (10276350).

Almost surely, 2^30829047 is an apocalyptic number.

30829047 is a deficient number, since it is larger than the sum of its proper divisors (10276353).

30829047 is a wasteful number, since it uses less digits than its factorization.

30829047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10276352.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 30829047 is about 5552.3911065414. The cubic root of 30829047 is about 313.5595505615.

The spelling of 30829047 in words is "thirty million, eight hundred twenty-nine thousand, forty-seven".