28127934 has 24 divisors (see below), whose sum is σ = 62362872. Its totient is φ = 9157680.

The previous prime is 28127933. The next prime is 28127951. The reversal of 28127934 is 43972182.

It is a super-2 number, since 2×28127934² = 1582361342216712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28127933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17397 + ... + 18944.

It is an arithmetic number, because the mean of its divisors is an integer number (2598453).

Almost surely, 2^28127934 is an apocalyptic number.

28127934 is an abundant number, since it is smaller than the sum of its proper divisors (34234938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28127934 is a wasteful number, since it uses less digits than its factorization.

28127934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36392 (or 36389 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 28127934 is about 5303.5774718580. The cubic root of 28127934 is about 304.1206743328.

The spelling of 28127934 in words is "twenty-eight million, one hundred twenty-seven thousand, nine hundred thirty-four".