29289887 has 8 divisors (see below), whose sum is σ = 33634560. Its totient is φ = 25225560.

The previous prime is 29289877. The next prime is 29289893. The reversal of 29289887 is 78898292.

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 29289887 - 2¹⁸ = 29027743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29289817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69863 + ... + 70280.

It is an arithmetic number, because the mean of its divisors is an integer number (4204320).

Almost surely, 2^29289887 is an apocalyptic number.

29289887 is a deficient number, since it is larger than the sum of its proper divisors (4344673).

29289887 is a wasteful number, since it uses less digits than its factorization.

29289887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140173.

The product of its digits is 1161216, while the sum is 53.

The square root of 29289887 is about 5412.0132113660. The cubic root of 29289887 is about 308.2519969210.

The spelling of 29289887 in words is "twenty-nine million, two hundred eighty-nine thousand, eight hundred eighty-seven".