28077576 has 16 divisors (see below), whose sum is σ = 70194000. Its totient is φ = 9359184.

The previous prime is 28077571. The next prime is 28077593. The reversal of 28077576 is 67577082.

It is not an unprimeable number, because it can be changed into a prime (28077571) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 584926 + ... + 584973.

It is an arithmetic number, because the mean of its divisors is an integer number (4387125).

Almost surely, 2^28077576 is an apocalyptic number.

It is an amenable number.

28077576 is an abundant number, since it is smaller than the sum of its proper divisors (42116424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28077576 is a wasteful number, since it uses less digits than its factorization.

28077576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169908 (or 1169904 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 42.

The square root of 28077576 is about 5298.8277948995. The cubic root of 28077576 is about 303.9390748175.

The spelling of 28077576 in words is "twenty-eight million, seventy-seven thousand, five hundred seventy-six".