29796921 has 96 divisors (see below), whose sum is σ = 59105280. Its totient is φ = 13996800.

The previous prime is 29796911. The next prime is 29796941. The reversal of 29796921 is 12969792.

It is not a de Polignac number, because 29796921 - 2⁹ = 29796409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29796911) 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 95 ways as a sum of consecutive naturals, for example, 408141 + ... + 408213.

It is an arithmetic number, because the mean of its divisors is an integer number (615680).

Almost surely, 2^29796921 is an apocalyptic number.

29796921 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

29796921 is a deficient number, since it is larger than the sum of its proper divisors (29308359).

29796921 is a wasteful number, since it uses less digits than its factorization.

29796921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 144 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 29796921 is about 5458.6556037178. The cubic root of 29796921 is about 310.0205362739.

The spelling of 29796921 in words is "twenty-nine million, seven hundred ninety-six thousand, nine hundred twenty-one".