29720895 has 8 divisors (see below), whose sum is σ = 47553456. Its totient is φ = 15851136.

The previous prime is 29720893. The next prime is 29720903. The reversal of 29720895 is 59802792.

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

It is not a de Polignac number, because 29720895 - 2¹ = 29720893 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29720891) 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 7 ways as a sum of consecutive naturals, for example, 990682 + ... + 990711.

It is an arithmetic number, because the mean of its divisors is an integer number (5944182).

Almost surely, 2^29720895 is an apocalyptic number.

29720895 is a deficient number, since it is larger than the sum of its proper divisors (17832561).

29720895 is a wasteful number, since it uses less digits than its factorization.

29720895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981401.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 29720895 is about 5451.6873534714. The cubic root of 29720895 is about 309.7566421678.

The spelling of 29720895 in words is "twenty-nine million, seven hundred twenty thousand, eight hundred ninety-five".