28734704 has 20 divisors (see below), whose sum is σ = 55822320. Its totient is φ = 14328960.

The previous prime is 28734703. The next prime is 28734733. The reversal of 28734704 is 40743782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28734701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4349 + ... + 8739.

It is an arithmetic number, because the mean of its divisors is an integer number (2791116).

Almost surely, 2^28734704 is an apocalyptic number.

It is an amenable number.

28734704 is a deficient number, since it is larger than the sum of its proper divisors (27087616).

28734704 is a wasteful number, since it uses less digits than its factorization.

28734704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4808 (or 4802 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 28734704 is about 5360.4760982584. The cubic root of 28734704 is about 306.2919451641.

The spelling of 28734704 in words is "twenty-eight million, seven hundred thirty-four thousand, seven hundred four".