29439487 has 8 divisors (see below), whose sum is σ = 36703872. Its totient is φ = 22939800.

The previous prime is 29439481. The next prime is 29439497. The reversal of 29439487 is 78493492.

It is a happy number.

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 29439487 - 2¹¹ = 29437439 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 (29439481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191089 + ... + 191242.

It is an arithmetic number, because the mean of its divisors is an integer number (4587984).

Almost surely, 2^29439487 is an apocalyptic number.

29439487 is a deficient number, since it is larger than the sum of its proper divisors (7264385).

29439487 is a wasteful number, since it uses less digits than its factorization.

29439487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382349.

The product of its digits is 435456, while the sum is 46.

The square root of 29439487 is about 5425.8167127171. The cubic root of 29439487 is about 308.7759116522.

The spelling of 29439487 in words is "twenty-nine million, four hundred thirty-nine thousand, four hundred eighty-seven".