29064681 has 6 divisors (see below), whose sum is σ = 41982330. Its totient is φ = 19376448.

The previous prime is 29064677. The next prime is 29064703. The reversal of 29064681 is 18646092.

29064681 is a `hidden beast` number, since 2 + 9 + 0 + 646 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28515600 + 549081 = 5340^2 + 741^2 .

It is not a de Polignac number, because 29064681 - 2² = 29064677 is a prime.

It is a super-2 number, since 2×29064681² = 1689511363263522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29064601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1614696 + ... + 1614713.

It is an arithmetic number, because the mean of its divisors is an integer number (6997055).

Almost surely, 2^29064681 is an apocalyptic number.

It is an amenable number.

29064681 is a deficient number, since it is larger than the sum of its proper divisors (12917649).

29064681 is a wasteful number, since it uses less digits than its factorization.

29064681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3229415 (or 3229412 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 29064681 is about 5391.1669423233. The cubic root of 29064681 is about 307.4599273579.

The spelling of 29064681 in words is "twenty-nine million, sixty-four thousand, six hundred eighty-one".