29987166 has 16 divisors (see below), whose sum is σ = 65426688. Its totient is φ = 9087000.

The previous prime is 29987161. The next prime is 29987171. The reversal of 29987166 is 66178992.

It is an interprime number because it is at equal distance from previous prime (29987161) and next prime (29987171).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29987161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227110 + ... + 227241.

It is an arithmetic number, because the mean of its divisors is an integer number (4089168).

Almost surely, 2^29987166 is an apocalyptic number.

29987166 is an abundant number, since it is smaller than the sum of its proper divisors (35439522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29987166 is a wasteful number, since it uses less digits than its factorization.

29987166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454367.

The product of its digits is 326592, while the sum is 48.

The square root of 29987166 is about 5476.0538711740. The cubic root of 29987166 is about 310.6789351399.

It can be divided in two parts, 299871 and 66, that multiplied together give a triangular number (19791486 = T₆₂₉₁).

The spelling of 29987166 in words is "twenty-nine million, nine hundred eighty-seven thousand, one hundred sixty-six".