29928473 has 8 divisors (see below), whose sum is σ = 30711648. Its totient is φ = 29149344.

The previous prime is 29928461. The next prime is 29928529. The reversal of 29928473 is 37482992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29928473 - 2²⁰ = 28879897 is a prime.

It is a super-2 number, since 2×29928473² = 1791426992223458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29928433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18890 + ... + 20412.

It is an arithmetic number, because the mean of its divisors is an integer number (3838956).

Almost surely, 2^29928473 is an apocalyptic number.

It is an amenable number.

29928473 is a deficient number, since it is larger than the sum of its proper divisors (783175).

29928473 is a wasteful number, since it uses less digits than its factorization.

29928473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023.

The product of its digits is 217728, while the sum is 44.

The square root of 29928473 is about 5470.6921865519. The cubic root of 29928473 is about 310.4761084992.

The spelling of 29928473 in words is "twenty-nine million, nine hundred twenty-eight thousand, four hundred seventy-three".