29886881 has 2 divisors, whose sum is σ = 29886882. Its totient is φ = 29886880.

The previous prime is 29886853. The next prime is 29886893. The reversal of 29886881 is 18868892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23435281 + 6451600 = 4841^2 + 2540^2 .

It is a cyclic number.

It is not a de Polignac number, because 29886881 - 2²² = 25692577 is a prime.

It is a super-2 number, since 2×29886881² = 1786451311816322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (29886841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14943440 + 14943441.

It is an arithmetic number, because the mean of its divisors is an integer number (14943441).

Almost surely, 2^29886881 is an apocalyptic number.

It is an amenable number.

29886881 is a deficient number, since it is larger than the sum of its proper divisors (1).

29886881 is an equidigital number, since it uses as much as digits as its factorization.

29886881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 442368, while the sum is 50.

The square root of 29886881 is about 5466.8895178154. The cubic root of 29886881 is about 310.3322175533.

The spelling of 29886881 in words is "twenty-nine million, eight hundred eighty-six thousand, eight hundred eighty-one".