29904993 has 24 divisors (see below), whose sum is σ = 45770400. Its totient is φ = 18762624.

The previous prime is 29904977. The next prime is 29904997. The reversal of 29904993 is 39940992.

It is not a de Polignac number, because 29904993 - 2⁴ = 29904977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29904997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30121 + ... + 31097.

It is an arithmetic number, because the mean of its divisors is an integer number (1907100).

Almost surely, 2^29904993 is an apocalyptic number.

It is an amenable number.

29904993 is a deficient number, since it is larger than the sum of its proper divisors (15865407).

29904993 is a wasteful number, since it uses less digits than its factorization.

29904993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181 (or 1178 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 29904993 is about 5468.5457847585. The cubic root of 29904993 is about 310.3948939060.

The spelling of 29904993 in words is "twenty-nine million, nine hundred four thousand, nine hundred ninety-three".