28863368 has 8 divisors (see below), whose sum is σ = 54118830. Its totient is φ = 14431680.

The previous prime is 28863287. The next prime is 28863371. The reversal of 28863368 is 86336882.

It can be written as a sum of positive squares in only one way, i.e., 27019204 + 1844164 = 5198^2 + 1358^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1803953 + ... + 1803968.

Almost surely, 2^28863368 is an apocalyptic number.

It is an amenable number.

28863368 is a deficient number, since it is larger than the sum of its proper divisors (25255462).

28863368 is a wasteful number, since it uses less digits than its factorization.

28863368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3607927 (or 3607923 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 28863368 is about 5372.4638667933. The cubic root of 28863368 is about 306.7484207574.

It can be divided in two parts, 288 and 63368, that multiplied together give a square (18249984 = 4272²).

The spelling of 28863368 in words is "twenty-eight million, eight hundred sixty-three thousand, three hundred sixty-eight".