29687081 has 2 divisors, whose sum is σ = 29687082. Its totient is φ = 29687080.

The previous prime is 29687069. The next prime is 29687093. The reversal of 29687081 is 18078692.

It is a balanced prime because it is at equal distance from previous prime (29687069) and next prime (29687093).

It can be written as a sum of positive squares in only one way, i.e., 29333056 + 354025 = 5416^2 + 595^2 .

It is a cyclic number.

It is not a de Polignac number, because 29687081 - 2¹⁰ = 29686057 is a prime.

It is a super-2 number, since 2×29687081² = 1762645556601122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (29687041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14843540 + 14843541.

It is an arithmetic number, because the mean of its divisors is an integer number (14843541).

Almost surely, 2^29687081 is an apocalyptic number.

It is an amenable number.

29687081 is a deficient number, since it is larger than the sum of its proper divisors (1).

29687081 is an equidigital number, since it uses as much as digits as its factorization.

29687081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 29687081 is about 5448.5852292132. The cubic root of 29687081 is about 309.6391256776.

The spelling of 29687081 in words is "twenty-nine million, six hundred eighty-seven thousand, eighty-one".