29980487 has 4 divisors (see below), whose sum is σ = 30050160. Its totient is φ = 29910816.

The previous prime is 29980411. The next prime is 29980543. The reversal of 29980487 is 78408992.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29980487 - 2¹⁰ = 29979463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29980187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34187 + ... + 35052.

It is an arithmetic number, because the mean of its divisors is an integer number (7512540).

Almost surely, 2^29980487 is an apocalyptic number.

29980487 is a deficient number, since it is larger than the sum of its proper divisors (69673).

29980487 is an equidigital number, since it uses as much as digits as its factorization.

29980487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69672.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 29980487 is about 5475.4440002615. Note that the first 3 decimals coincide. The cubic root of 29980487 is about 310.6558677307.

The spelling of 29980487 in words is "twenty-nine million, nine hundred eighty thousand, four hundred eighty-seven".