28896488 has 8 divisors (see below), whose sum is σ = 54180930. Its totient is φ = 14448240.

The previous prime is 28896467. The next prime is 28896509. The reversal of 28896488 is 88469882.

It is an interprime number because it is at equal distance from previous prime (28896467) and next prime (28896509).

It can be written as a sum of positive squares in only one way, i.e., 27646564 + 1249924 = 5258^2 + 1118^2 .

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, 1806023 + ... + 1806038.

Almost surely, 2^28896488 is an apocalyptic number.

It is an amenable number.

28896488 is a deficient number, since it is larger than the sum of its proper divisors (25284442).

28896488 is a wasteful number, since it uses less digits than its factorization.

28896488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612067 (or 3612063 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 53.

The square root of 28896488 is about 5375.5453676813. The cubic root of 28896488 is about 306.8657046475.

The spelling of 28896488 in words is "twenty-eight million, eight hundred ninety-six thousand, four hundred eighty-eight".