28933463 has 8 divisors (see below), whose sum is σ = 31298400. Its totient is φ = 26588448.

The previous prime is 28933433. The next prime is 28933469. The reversal of 28933463 is 36433982.

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 28933463 - 2¹⁰ = 28932439 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 (28933469) 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, 1883 + ... + 7836.

It is an arithmetic number, because the mean of its divisors is an integer number (3912300).

Almost surely, 2^28933463 is an apocalyptic number.

28933463 is a deficient number, since it is larger than the sum of its proper divisors (2364937).

28933463 is a wasteful number, since it uses less digits than its factorization.

28933463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9961.

The product of its digits is 93312, while the sum is 38.

The square root of 28933463 is about 5378.9834541482. The cubic root of 28933463 is about 306.9965339648.

The spelling of 28933463 in words is "twenty-eight million, nine hundred thirty-three thousand, four hundred sixty-three".