28023386 has 16 divisors (see below), whose sum is σ = 42808704. Its totient is φ = 13755744.

The previous prime is 28023371. The next prime is 28023403. The reversal of 28023386 is 68332082.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53321 + ... + 53843.

It is an arithmetic number, because the mean of its divisors is an integer number (2675544).

Almost surely, 2^28023386 is an apocalyptic number.

28023386 is a deficient number, since it is larger than the sum of its proper divisors (14785318).

28023386 is a wasteful number, since it uses less digits than its factorization.

28023386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965.

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

The square root of 28023386 is about 5293.7119302055. The cubic root of 28023386 is about 303.7434137451.

The spelling of 28023386 in words is "twenty-eight million, twenty-three thousand, three hundred eighty-six".