29720063 has 4 divisors (see below), whose sum is σ = 31468320. Its totient is φ = 27971808.

The previous prime is 29720057. The next prime is 29720107. The reversal of 29720063 is 36002792.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29720063 - 2¹⁸ = 29457919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29720003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 874103 + ... + 874136.

It is an arithmetic number, because the mean of its divisors is an integer number (7867080).

Almost surely, 2^29720063 is an apocalyptic number.

29720063 is a deficient number, since it is larger than the sum of its proper divisors (1748257).

29720063 is a wasteful number, since it uses less digits than its factorization.

29720063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748256.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 29720063 is about 5451.6110462871. The cubic root of 29720063 is about 309.7537517218.

The spelling of 29720063 in words is "twenty-nine million, seven hundred twenty thousand, sixty-three".