28214774 has 16 divisors (see below), whose sum is σ = 49929216. Its totient is φ = 11701800.

The previous prime is 28214741. The next prime is 28214777. The reversal of 28214774 is 47741282.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28214777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32072 + ... + 32939.

It is an arithmetic number, because the mean of its divisors is an integer number (3120576).

Almost surely, 2^28214774 is an apocalyptic number.

28214774 is a deficient number, since it is larger than the sum of its proper divisors (21714442).

28214774 is a wasteful number, since it uses less digits than its factorization.

28214774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65051.

The product of its digits is 25088, while the sum is 35.

The square root of 28214774 is about 5311.7580893712. The cubic root of 28214774 is about 304.4333256556.

The spelling of 28214774 in words is "twenty-eight million, two hundred fourteen thousand, seven hundred seventy-four".