28934768 has 20 divisors (see below), whose sum is σ = 56145960. Its totient is φ = 14445504.

The previous prime is 28934761. The next prime is 28934797. The reversal of 28934768 is 86743982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28934761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17063 + ... + 18681.

It is an arithmetic number, because the mean of its divisors is an integer number (2807298).

Almost surely, 2^28934768 is an apocalyptic number.

It is an amenable number.

28934768 is a deficient number, since it is larger than the sum of its proper divisors (27211192).

28934768 is a wasteful number, since it uses less digits than its factorization.

28934768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2744 (or 2738 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 28934768 is about 5379.1047582288. The cubic root of 28934768 is about 307.0011494332.

The spelling of 28934768 in words is "twenty-eight million, nine hundred thirty-four thousand, seven hundred sixty-eight".