28005862 has 4 divisors (see below), whose sum is σ = 42008796. Its totient is φ = 14002930.

The previous prime is 28005847. The next prime is 28005869. The reversal of 28005862 is 26850082.

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 (28005869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7001464 + ... + 7001467.

It is an arithmetic number, because the mean of its divisors is an integer number (10502199).

Almost surely, 2^28005862 is an apocalyptic number.

28005862 is a deficient number, since it is larger than the sum of its proper divisors (14002934).

28005862 is a wasteful number, since it uses less digits than its factorization.

28005862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14002933.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 28005862 is about 5292.0565000763. The cubic root of 28005862 is about 303.6800867619.

The spelling of 28005862 in words is "twenty-eight million, five thousand, eight hundred sixty-two".