28206662 has 8 divisors (see below), whose sum is σ = 46156392. Its totient is φ = 12821200.

The previous prime is 28206643. The next prime is 28206701. The reversal of 28206662 is 26660282.

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, 641039 + ... + 641082.

It is an arithmetic number, because the mean of its divisors is an integer number (5769549).

Almost surely, 2^28206662 is an apocalyptic number.

28206662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28206662 is a deficient number, since it is larger than the sum of its proper divisors (17949730).

28206662 is a wasteful number, since it uses less digits than its factorization.

28206662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282134.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 28206662 is about 5310.9944454876. The cubic root of 28206662 is about 304.4041470906.

The spelling of 28206662 in words is "twenty-eight million, two hundred six thousand, six hundred sixty-two".