28776064 has 16 divisors (see below), whose sum is σ = 57327570. Its totient is φ = 14387968.

The previous prime is 28776043. The next prime is 28776101. The reversal of 28776064 is 46067782.

It can be written as a sum of positive squares in only one way, i.e., 19289664 + 9486400 = 4392^2 + 3080^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112279 + ... + 112534.

Almost surely, 2^28776064 is an apocalyptic number.

It is an amenable number.

28776064 is a deficient number, since it is larger than the sum of its proper divisors (28551506).

28776064 is an equidigital number, since it uses as much as digits as its factorization.

28776064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224827 (or 224815 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 28776064 is about 5364.3325773110. The cubic root of 28776064 is about 306.4388309832.

The spelling of 28776064 in words is "twenty-eight million, seven hundred seventy-six thousand, sixty-four".