28629943 has 8 divisors (see below), whose sum is σ = 29202768. Its totient is φ = 28062144.

The previous prime is 28629877. The next prime is 28629947. The reversal of 28629943 is 34992682.

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 28629943 - 2¹⁷ = 28498871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28629943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28629947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11496 + ... + 13762.

It is an arithmetic number, because the mean of its divisors is an integer number (3650346).

Almost surely, 2^28629943 is an apocalyptic number.

28629943 is a deficient number, since it is larger than the sum of its proper divisors (572825).

28629943 is a wasteful number, since it uses less digits than its factorization.

28629943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513.

The product of its digits is 186624, while the sum is 43.

The square root of 28629943 is about 5350.6955622610. The cubic root of 28629943 is about 305.9192654426.

The spelling of 28629943 in words is "twenty-eight million, six hundred twenty-nine thousand, nine hundred forty-three".