28514788 has 6 divisors (see below), whose sum is σ = 49900886. Its totient is φ = 14257392.

The previous prime is 28514777. The next prime is 28514789. The reversal of 28514788 is 88741582.

It can be written as a sum of positive squares in only one way, i.e., 24681024 + 3833764 = 4968^2 + 1958^2 .

It is not an unprimeable number, because it can be changed into a prime (28514789) 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 as a sum of consecutive naturals, namely, 3564345 + ... + 3564352.

Almost surely, 2^28514788 is an apocalyptic number.

It is an amenable number.

28514788 is a deficient number, since it is larger than the sum of its proper divisors (21386098).

28514788 is a wasteful number, since it uses less digits than its factorization.

28514788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7128701 (or 7128699 counting only the distinct ones).

The product of its digits is 143360, while the sum is 43.

The square root of 28514788 is about 5339.9239694962. The cubic root of 28514788 is about 305.5085594180.

The spelling of 28514788 in words is "twenty-eight million, five hundred fourteen thousand, seven hundred eighty-eight".