29289261 has 8 divisors (see below), whose sum is σ = 39398400. Its totient is φ = 19353152.

The previous prime is 29289259. The next prime is 29289263. The reversal of 29289261 is 16298292.

It is an interprime number because it is at equal distance from previous prime (29289259) and next prime (29289263).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29289261 - 2¹ = 29289259 is a prime.

It is a super-2 number, since 2×29289261² = 1715721619852242, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29289263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42861 + ... + 43538.

It is an arithmetic number, because the mean of its divisors is an integer number (4924800).

Almost surely, 2^29289261 is an apocalyptic number.

It is an amenable number.

29289261 is a deficient number, since it is larger than the sum of its proper divisors (10109139).

29289261 is a wasteful number, since it uses less digits than its factorization.

29289261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86515.

The product of its digits is 31104, while the sum is 39.

The square root of 29289261 is about 5411.9553767562. The cubic root of 29289261 is about 308.2498008601.

The spelling of 29289261 in words is "twenty-nine million, two hundred eighty-nine thousand, two hundred sixty-one".