28739006 has 16 divisors (see below), whose sum is σ = 45232128. Its totient is φ = 13668600.

The previous prime is 28739003. The next prime is 28739017. The reversal of 28739006 is 60093782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28739003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7151 + ... + 10421.

It is an arithmetic number, because the mean of its divisors is an integer number (2827008).

Almost surely, 2^28739006 is an apocalyptic number.

28739006 is a deficient number, since it is larger than the sum of its proper divisors (16493122).

28739006 is a wasteful number, since it uses less digits than its factorization.

28739006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 28739006 is about 5360.8773535682. The cubic root of 28739006 is about 306.3072298433.

It can be divided in two parts, 287 and 39006, that added together give a palindrome (39293).

The spelling of 28739006 in words is "twenty-eight million, seven hundred thirty-nine thousand, six".