28743704 has 16 divisors (see below), whose sum is σ = 58794120. Its totient is φ = 13065280.

The previous prime is 28743703. The next prime is 28743733. The reversal of 28743704 is 40734782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28743703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163229 + ... + 163404.

Almost surely, 2^28743704 is an apocalyptic number.

It is an amenable number.

28743704 is an abundant number, since it is smaller than the sum of its proper divisors (30050416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28743704 is a wasteful number, since it uses less digits than its factorization.

28743704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326650 (or 326646 counting only the distinct ones).

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

The square root of 28743704 is about 5361.3155102083. The cubic root of 28743704 is about 306.3239197381.

The spelling of 28743704 in words is "twenty-eight million, seven hundred forty-three thousand, seven hundred four".