29979141 has 4 divisors (see below), whose sum is σ = 39972192. Its totient is φ = 19986092.

The previous prime is 29979137. The next prime is 29979181. The reversal of 29979141 is 14197992.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29979141 - 2² = 29979137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29979093 and 29979102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29979181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4996521 + ... + 4996526.

It is an arithmetic number, because the mean of its divisors is an integer number (9993048).

Almost surely, 2^29979141 is an apocalyptic number.

It is an amenable number.

29979141 is a deficient number, since it is larger than the sum of its proper divisors (9993051).

29979141 is an equidigital number, since it uses as much as digits as its factorization.

29979141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9993050.

The product of its digits is 40824, while the sum is 42.

The square root of 29979141 is about 5475.3210864752. The cubic root of 29979141 is about 310.6512186061.

The spelling of 29979141 in words is "twenty-nine million, nine hundred seventy-nine thousand, one hundred forty-one".