29687069 has 2 divisors, whose sum is σ = 29687070. Its totient is φ = 29687068.

The previous prime is 29687051. The next prime is 29687081. The reversal of 29687069 is 96078692.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25381444 + 4305625 = 5038^2 + 2075^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29687069 is a prime.

It is a super-2 number, since 2×29687069² = 1762644131621522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29687029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14843534 + 14843535.

It is an arithmetic number, because the mean of its divisors is an integer number (14843535).

Almost surely, 2^29687069 is an apocalyptic number.

It is an amenable number.

29687069 is a deficient number, since it is larger than the sum of its proper divisors (1).

29687069 is an equidigital number, since it uses as much as digits as its factorization.

29687069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 29687069 is about 5448.5841280098. The cubic root of 29687069 is about 309.6390839572.

The spelling of 29687069 in words is "twenty-nine million, six hundred eighty-seven thousand, sixty-nine".