29720107 has 2 divisors, whose sum is σ = 29720108. Its totient is φ = 29720106.

The previous prime is 29720057. The next prime is 29720113. The reversal of 29720107 is 70102792.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29720107 - 2¹⁹ = 29195819 is a prime.

It is a Chen prime.

It is equal to p_1841554 and since 29720107 and 1841554 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (29720137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14860053 + 14860054.

It is an arithmetic number, because the mean of its divisors is an integer number (14860054).

Almost surely, 2^29720107 is an apocalyptic number.

29720107 is a deficient number, since it is larger than the sum of its proper divisors (1).

29720107 is an equidigital number, since it uses as much as digits as its factorization.

29720107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 29720107 is about 5451.6150817900. The cubic root of 29720107 is about 309.7539045833.

Adding to 29720107 its reverse (70102792), we get a palindrome (99822899).

The spelling of 29720107 in words is "twenty-nine million, seven hundred twenty thousand, one hundred seven".