29428304947 has 4 divisors (see below), whose sum is σ = 29428762680. Its totient is φ = 29427847216.

The previous prime is 29428304933. The next prime is 29428304963. The reversal of 29428304947 is 74940382492.

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 29428304947 - 2⁷ = 29428304819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29428304894 and 29428304903.

It is not an unprimeable number, because it can be changed into a prime (29428304447) 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, 112813 + ... + 267550.

It is an arithmetic number, because the mean of its divisors is an integer number (7357190670).

Almost surely, 2^29428304947 is an apocalyptic number.

29428304947 is a deficient number, since it is larger than the sum of its proper divisors (457733).

29428304947 is an equidigital number, since it uses as much as digits as its factorization.

29428304947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457732.

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 29428304947 in words is "twenty-nine billion, four hundred twenty-eight million, three hundred four thousand, nine hundred forty-seven".