28769704 has 8 divisors (see below), whose sum is σ = 53943210. Its totient is φ = 14384848.

The previous prime is 28769693. The next prime is 28769731. The reversal of 28769704 is 40796782.

It can be written as a sum of positive squares in only one way, i.e., 17892900 + 10876804 = 4230^2 + 3298^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1798099 + ... + 1798114.

Almost surely, 2^28769704 is an apocalyptic number.

It is an amenable number.

28769704 is a deficient number, since it is larger than the sum of its proper divisors (25173506).

28769704 is a wasteful number, since it uses less digits than its factorization.

28769704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3596219 (or 3596215 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 28769704 is about 5363.7397401440. The cubic root of 28769704 is about 306.4162532537.

The spelling of 28769704 in words is "twenty-eight million, seven hundred sixty-nine thousand, seven hundred four".