28806662 has 4 divisors (see below), whose sum is σ = 43209996. Its totient is φ = 14403330.

The previous prime is 28806623. The next prime is 28806667. The reversal of 28806662 is 26660882.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28806667) by changing a digit.

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 as a sum of consecutive naturals, namely, 7201664 + ... + 7201667.

It is an arithmetic number, because the mean of its divisors is an integer number (10802499).

Almost surely, 2^28806662 is an apocalyptic number.

28806662 is a deficient number, since it is larger than the sum of its proper divisors (14403334).

28806662 is a wasteful number, since it uses less digits than its factorization.

28806662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14403333.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 28806662 is about 5367.1838053117. The cubic root of 28806662 is about 306.5474061049.

The spelling of 28806662 in words is "twenty-eight million, eight hundred six thousand, six hundred sixty-two".