29473945 has 4 divisors (see below), whose sum is σ = 35368740. Its totient is φ = 23579152.

The previous prime is 29473933. The next prime is 29473949. The reversal of 29473945 is 54937492.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21196816 + 8277129 = 4604^2 + 2877^2 .

It is a cyclic number.

It is not a de Polignac number, because 29473945 - 2⁷ = 29473817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29473949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2947390 + ... + 2947399.

It is an arithmetic number, because the mean of its divisors is an integer number (8842185).

Almost surely, 2^29473945 is an apocalyptic number.

It is an amenable number.

29473945 is a deficient number, since it is larger than the sum of its proper divisors (5894795).

29473945 is an equidigital number, since it uses as much as digits as its factorization.

29473945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5894794.

The product of its digits is 272160, while the sum is 43.

The square root of 29473945 is about 5428.9911585855. The cubic root of 29473945 is about 308.8963355337.

The spelling of 29473945 in words is "twenty-nine million, four hundred seventy-three thousand, nine hundred forty-five".