29973393 has 24 divisors (see below), whose sum is σ = 47561280. Its totient is φ = 18105120.

The previous prime is 29973343. The next prime is 29973403. The reversal of 29973393 is 39337992.

It is not a de Polignac number, because 29973393 - 2⁹ = 29972881 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29973323) 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 23 ways as a sum of consecutive naturals, for example, 123 + ... + 7743.

It is an arithmetic number, because the mean of its divisors is an integer number (1981720).

Almost surely, 2^29973393 is an apocalyptic number.

29973393 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

29973393 is a deficient number, since it is larger than the sum of its proper divisors (17587887).

29973393 is a wasteful number, since it uses less digits than its factorization.

29973393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7669 (or 7666 counting only the distinct ones).

The product of its digits is 275562, while the sum is 45.

The square root of 29973393 is about 5474.7961605890. The cubic root of 29973393 is about 310.6313632748.

The spelling of 29973393 in words is "twenty-nine million, nine hundred seventy-three thousand, three hundred ninety-three".