29671872 has 84 divisors (see below), whose sum is σ = 82341720. Its totient is φ = 9418752.

The previous prime is 29671861. The next prime is 29671883. The reversal of 29671872 is 27817692.

It is an interprime number because it is at equal distance from previous prime (29671861) and next prime (29671883).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 406428 + ... + 406500.

Almost surely, 2^29671872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29671872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41170860).

29671872 is an abundant number, since it is smaller than the sum of its proper divisors (52669848).

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

29671872 is an equidigital number, since it uses as much as digits as its factorization.

29671872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 107 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 29671872 is about 5447.1893670039. The cubic root of 29671872 is about 309.5862395316.

The spelling of 29671872 in words is "twenty-nine million, six hundred seventy-one thousand, eight hundred seventy-two".