28554688 has 28 divisors (see below), whose sum is σ = 57012840. Its totient is φ = 14189312.

The previous prime is 28554683. The next prime is 28554703. The reversal of 28554688 is 88645582.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28554683) 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, 9783 + ... + 12361.

Almost surely, 2^28554688 is an apocalyptic number.

It is an amenable number.

28554688 is a deficient number, since it is larger than the sum of its proper divisors (28458152).

28554688 is a wasteful number, since it uses less digits than its factorization.

28554688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764 (or 2754 counting only the distinct ones).

The product of its digits is 614400, while the sum is 46.

The square root of 28554688 is about 5343.6586717342. The cubic root of 28554688 is about 305.6509897284.

The spelling of 28554688 in words is "twenty-eight million, five hundred fifty-four thousand, six hundred eighty-eight".