28929794 has 4 divisors (see below), whose sum is σ = 43394694. Its totient is φ = 14464896.

The previous prime is 28929779. The next prime is 28929809. The reversal of 28929794 is 49792982.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49792982 = 2 ⋅24896491.

It is an interprime number because it is at equal distance from previous prime (28929779) and next prime (28929809).

It can be written as a sum of positive squares in only one way, i.e., 28143025 + 786769 = 5305^2 + 887^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7232447 + ... + 7232450.

Almost surely, 2^28929794 is an apocalyptic number.

28929794 is a deficient number, since it is larger than the sum of its proper divisors (14464900).

28929794 is a wasteful number, since it uses less digits than its factorization.

28929794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14464899.

The product of its digits is 653184, while the sum is 50.

The square root of 28929794 is about 5378.6423937644. The cubic root of 28929794 is about 306.9835568582.

The spelling of 28929794 in words is "twenty-eight million, nine hundred twenty-nine thousand, seven hundred ninety-four".