28777852 has 12 divisors (see below), whose sum is σ = 50399496. Its totient is φ = 14378000.

The previous prime is 28777817. The next prime is 28777877. The reversal of 28777852 is 25877782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7227 + ... + 10477.

It is an arithmetic number, because the mean of its divisors is an integer number (4199958).

Almost surely, 2^28777852 is an apocalyptic number.

It is an amenable number.

28777852 is a deficient number, since it is larger than the sum of its proper divisors (21621644).

28777852 is a wasteful number, since it uses less digits than its factorization.

28777852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5468 (or 5466 counting only the distinct ones).

The product of its digits is 439040, while the sum is 46.

The square root of 28777852 is about 5364.4992310560. The cubic root of 28777852 is about 306.4451777080.

The spelling of 28777852 in words is "twenty-eight million, seven hundred seventy-seven thousand, eight hundred fifty-two".