29799971 has 2 divisors, whose sum is σ = 29799972. Its totient is φ = 29799970.

The previous prime is 29799967. The next prime is 29799977. The reversal of 29799971 is 17999792.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29799971 - 2² = 29799967 is a prime.

It is not a weakly prime, because it can be changed into another prime (29799977) 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 as a sum of consecutive naturals, namely, 14899985 + 14899986.

It is an arithmetic number, because the mean of its divisors is an integer number (14899986).

Almost surely, 2^29799971 is an apocalyptic number.

29799971 is a deficient number, since it is larger than the sum of its proper divisors (1).

29799971 is an equidigital number, since it uses as much as digits as its factorization.

29799971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 642978, while the sum is 53.

The square root of 29799971 is about 5458.9349693873. The cubic root of 29799971 is about 310.0311137692.

The spelling of 29799971 in words is "twenty-nine million, seven hundred ninety-nine thousand, nine hundred seventy-one".