27752138 has 4 divisors (see below), whose sum is σ = 41628210. Its totient is φ = 13876068.

The previous prime is 27752119. The next prime is 27752149. The reversal of 27752138 is 83125772.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23396569 + 4355569 = 4837^2 + 2087^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27752098 and 27752107.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6938033 + ... + 6938036.

Almost surely, 2^27752138 is an apocalyptic number.

27752138 is a deficient number, since it is larger than the sum of its proper divisors (13876072).

27752138 is a wasteful number, since it uses less digits than its factorization.

27752138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13876071.

The product of its digits is 23520, while the sum is 35.

The square root of 27752138 is about 5268.0298024973. The cubic root of 27752138 is about 302.7602223179.

It can be divided in two parts, 2775 and 2138, that added together give a cube (4913 = 17³).

The spelling of 27752138 in words is "twenty-seven million, seven hundred fifty-two thousand, one hundred thirty-eight".