29680747 has 4 divisors (see below), whose sum is σ = 29733480. Its totient is φ = 29628016.

The previous prime is 29680727. The next prime is 29680751. The reversal of 29680747 is 74708692.

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 29680747 - 2⁷ = 29680619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29680727) 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 3 ways as a sum of consecutive naturals, for example, 25513 + ... + 26650.

It is an arithmetic number, because the mean of its divisors is an integer number (7433370).

Almost surely, 2^29680747 is an apocalyptic number.

29680747 is a deficient number, since it is larger than the sum of its proper divisors (52733).

29680747 is an equidigital number, since it uses as much as digits as its factorization.

29680747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52732.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 29680747 is about 5448.0039464009. The cubic root of 29680747 is about 309.6171027004.

Subtracting from 29680747 its sum of digits (43), we obtain a square (29680704 = 5448²).

The spelling of 29680747 in words is "twenty-nine million, six hundred eighty thousand, seven hundred forty-seven".