29228487 has 4 divisors (see below), whose sum is σ = 38971320. Its totient is φ = 19485656.

The previous prime is 29228471. The next prime is 29228513. The reversal of 29228487 is 78482292.

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 29228487 - 2⁴ = 29228471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29228417) 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 3 ways as a sum of consecutive naturals, for example, 4871412 + ... + 4871417.

It is an arithmetic number, because the mean of its divisors is an integer number (9742830).

Almost surely, 2^29228487 is an apocalyptic number.

29228487 is a deficient number, since it is larger than the sum of its proper divisors (9742833).

29228487 is an equidigital number, since it uses as much as digits as its factorization.

29228487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9742832.

The product of its digits is 129024, while the sum is 42.

The square root of 29228487 is about 5406.3376698094. The cubic root of 29228487 is about 308.0364513838.

The spelling of 29228487 in words is "twenty-nine million, two hundred twenty-eight thousand, four hundred eighty-seven".