28227958 has 16 divisors (see below), whose sum is σ = 48623040. Its totient is φ = 12155400.

The previous prime is 28227943. The next prime is 28227961. The reversal of 28227958 is 85972282.

It is a super-2 number, since 2×28227958² = 1593635225699528, which contains 22 as substring.

It is a congruent 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, 33348 + ... + 34183.

It is an arithmetic number, because the mean of its divisors is an integer number (3038940).

Almost surely, 2^28227958 is an apocalyptic number.

28227958 is a deficient number, since it is larger than the sum of its proper divisors (20395082).

28227958 is a wasteful number, since it uses less digits than its factorization.

28227958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67563.

The product of its digits is 161280, while the sum is 43.

The square root of 28227958 is about 5312.9989648032. The cubic root of 28227958 is about 304.4807360888.

The spelling of 28227958 in words is "twenty-eight million, two hundred twenty-seven thousand, nine hundred fifty-eight".