28743496 has 16 divisors (see below), whose sum is σ = 54307440. Its totient is φ = 14261520.

The previous prime is 28743493. The next prime is 28743497. The reversal of 28743496 is 69434782.

It is not an unprimeable number, because it can be changed into a prime (28743493) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 12666 + ... + 14761.

It is an arithmetic number, because the mean of its divisors is an integer number (3394215).

Almost surely, 2^28743496 is an apocalyptic number.

It is an amenable number.

28743496 is a deficient number, since it is larger than the sum of its proper divisors (25563944).

28743496 is a wasteful number, since it uses less digits than its factorization.

28743496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27564 (or 27560 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The square root of 28743496 is about 5361.2961119490. The cubic root of 28743496 is about 306.3231808455.

The spelling of 28743496 in words is "twenty-eight million, seven hundred forty-three thousand, four hundred ninety-six".