29421393 has 12 divisors (see below), whose sum is σ = 41010480. Its totient is φ = 18760456.

The previous prime is 29421377. The next prime is 29421419. The reversal of 29421393 is 39312492.

It is not a de Polignac number, because 29421393 - 2⁴ = 29421377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29421323) 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 11 ways as a sum of consecutive naturals, for example, 7683 + ... + 10856.

It is an arithmetic number, because the mean of its divisors is an integer number (3417540).

Almost surely, 2^29421393 is an apocalyptic number.

29421393 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

29421393 is a deficient number, since it is larger than the sum of its proper divisors (11589087).

29421393 is a wasteful number, since it uses less digits than its factorization.

29421393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18588 (or 18565 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

The square root of 29421393 is about 5424.1490576864. The cubic root of 29421393 is about 308.7126390783.

The spelling of 29421393 in words is "twenty-nine million, four hundred twenty-one thousand, three hundred ninety-three".