28774808 has 8 divisors (see below), whose sum is σ = 53952780. Its totient is φ = 14387400.

The previous prime is 28774793. The next prime is 28774819. The reversal of 28774808 is 80847782.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1798418 + ... + 1798433.

Almost surely, 2^28774808 is an apocalyptic number.

It is an amenable number.

28774808 is a deficient number, since it is larger than the sum of its proper divisors (25177972).

28774808 is a wasteful number, since it uses less digits than its factorization.

28774808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3596857 (or 3596853 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 44.

The square root of 28774808 is about 5364.2155064837. The cubic root of 28774808 is about 306.4343725002.

The spelling of 28774808 in words is "twenty-eight million, seven hundred seventy-four thousand, eight hundred eight".