27428936 has 8 divisors (see below), whose sum is σ = 51429270. Its totient is φ = 13714464.

The previous prime is 27428909. The next prime is 27428953. The reversal of 27428936 is 63982472.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22562500 + 4866436 = 4750^2 + 2206^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 27428893 and 27428902.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1714301 + ... + 1714316.

Almost surely, 2^27428936 is an apocalyptic number.

It is an amenable number.

27428936 is a deficient number, since it is larger than the sum of its proper divisors (24000334).

27428936 is a wasteful number, since it uses less digits than its factorization.

27428936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3428623 (or 3428619 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The square root of 27428936 is about 5237.2641713017. The cubic root of 27428936 is about 301.5803126082.

The spelling of 27428936 in words is "twenty-seven million, four hundred twenty-eight thousand, nine hundred thirty-six".