28739204 has 12 divisors (see below), whose sum is σ = 54162444. Its totient is φ = 13264224.

The previous prime is 28739147. The next prime is 28739209. The reversal of 28739204 is 40293782.

It can be written as a sum of positive squares in 2 ways, for example, as 4631104 + 24108100 = 2152^2 + 4910^2 .

It is not an unprimeable number, because it can be changed into a prime (28739209) 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, 276287 + ... + 276390.

It is an arithmetic number, because the mean of its divisors is an integer number (4513537).

Almost surely, 2^28739204 is an apocalyptic number.

It is an amenable number.

28739204 is a deficient number, since it is larger than the sum of its proper divisors (25423240).

28739204 is a wasteful number, since it uses less digits than its factorization.

28739204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552694 (or 552692 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 28739204 is about 5360.8958206628. The cubic root of 28739204 is about 306.3079332855.

The spelling of 28739204 in words is "twenty-eight million, seven hundred thirty-nine thousand, two hundred four".