29885057 has 4 divisors (see below), whose sum is σ = 30448980. Its totient is φ = 29321136.

The previous prime is 29885041. The next prime is 29885071. The reversal of 29885057 is 75058892.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26790976 + 3094081 = 5176^2 + 1759^2 .

It is a cyclic number.

It is not a de Polignac number, because 29885057 - 2⁴ = 29885041 is a prime.

It is a super-3 number, since 3×29885057³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29884999 and 29885017.

It is not an unprimeable number, because it can be changed into a prime (29885017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281882 + ... + 281987.

It is an arithmetic number, because the mean of its divisors is an integer number (7612245).

Almost surely, 2^29885057 is an apocalyptic number.

It is an amenable number.

29885057 is a deficient number, since it is larger than the sum of its proper divisors (563923).

29885057 is an equidigital number, since it uses as much as digits as its factorization.

29885057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563922.

The product of its (nonzero) digits is 201600, while the sum is 44.

The square root of 29885057 is about 5466.7226928023. The cubic root of 29885057 is about 310.3259042205.

The spelling of 29885057 in words is "twenty-nine million, eight hundred eighty-five thousand, fifty-seven".