28677446 has 12 divisors (see below), whose sum is σ = 50039388. Its totient is φ = 12290292.

The previous prime is 28677437. The next prime is 28677457. The reversal of 28677446 is 64477682.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28677397 and 28677406.

It is a congruent number.

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 in 5 ways as a sum of consecutive naturals, for example, 146216 + ... + 146411.

It is an arithmetic number, because the mean of its divisors is an integer number (4169949).

Almost surely, 2^28677446 is an apocalyptic number.

28677446 is a deficient number, since it is larger than the sum of its proper divisors (21361942).

28677446 is a wasteful number, since it uses less digits than its factorization.

28677446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292643 (or 292636 counting only the distinct ones).

The product of its digits is 451584, while the sum is 44.

The square root of 28677446 is about 5355.1326780949. The cubic root of 28677446 is about 306.0883664082.

The spelling of 28677446 in words is "twenty-eight million, six hundred seventy-seven thousand, four hundred forty-six".