29861668 has 12 divisors (see below), whose sum is σ = 52391052. Its totient is φ = 14892800.

The previous prime is 29861647. The next prime is 29861723. The reversal of 29861668 is 86616892.

It can be written as a sum of positive squares in 2 ways, for example, as 29354724 + 506944 = 5418^2 + 712^2 .

It is an unprimeable number.

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, 7705 + ... + 10912.

It is an arithmetic number, because the mean of its divisors is an integer number (4365921).

Almost surely, 2^29861668 is an apocalyptic number.

It is an amenable number.

29861668 is a deficient number, since it is larger than the sum of its proper divisors (22529384).

29861668 is a wasteful number, since it uses less digits than its factorization.

29861668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19022 (or 19020 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 29861668 is about 5464.5830582031. The cubic root of 29861668 is about 310.2449261038.

The spelling of 29861668 in words is "twenty-nine million, eight hundred sixty-one thousand, six hundred sixty-eight".