28782704 has 10 divisors (see below), whose sum is σ = 55766520. Its totient is φ = 14391344.

The previous prime is 28782671. The next prime is 28782727. The reversal of 28782704 is 40728782.

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, 899444 + ... + 899475.

It is an arithmetic number, because the mean of its divisors is an integer number (5576652).

Almost surely, 2^28782704 is an apocalyptic number.

It is an amenable number.

28782704 is a deficient number, since it is larger than the sum of its proper divisors (26983816).

28782704 is a wasteful number, since it uses less digits than its factorization.

28782704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798927 (or 1798921 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 28782704 is about 5364.9514443283. The cubic root of 28782704 is about 306.4623991514.

The spelling of 28782704 in words is "twenty-eight million, seven hundred eighty-two thousand, seven hundred four".