28082776 has 32 divisors (see below), whose sum is σ = 57559680. Its totient is φ = 12787200.

The previous prime is 28082767. The next prime is 28082777. The reversal of 28082776 is 67728082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28082777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 886 + ... + 7546.

It is an arithmetic number, because the mean of its divisors is an integer number (1798740).

Almost surely, 2^28082776 is an apocalyptic number.

It is an amenable number.

28082776 is an abundant number, since it is smaller than the sum of its proper divisors (29476904).

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

28082776 is a wasteful number, since it uses less digits than its factorization.

28082776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6715 (or 6711 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 28082776 is about 5299.3184467439. The cubic root of 28082776 is about 303.9578369503.

The spelling of 28082776 in words is "twenty-eight million, eighty-two thousand, seven hundred seventy-six".