28070206 has 8 divisors (see below), whose sum is σ = 42139944. Its totient is φ = 14023560.

The previous prime is 28070183. The next prime is 28070219. The reversal of 28070206 is 60207082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2320 + ... + 7843.

It is an arithmetic number, because the mean of its divisors is an integer number (5267493).

Almost surely, 2^28070206 is an apocalyptic number.

28070206 is a deficient number, since it is larger than the sum of its proper divisors (14069738).

28070206 is a wasteful number, since it uses less digits than its factorization.

28070206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11546.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 28070206 is about 5298.1323124286. The cubic root of 28070206 is about 303.9124791336.

Adding to 28070206 its reverse (60207082), we get a palindrome (88277288).

The spelling of 28070206 in words is "twenty-eight million, seventy thousand, two hundred six".