27741009 has 16 divisors (see below), whose sum is σ = 38139840. Its totient is φ = 17922240.

The previous prime is 27740983. The next prime is 27741017. The reversal of 27741009 is 90014772.

27741009 = T₁₂₀₆ + T₁₂₀₇ + ... + T₁₂₄₂.

It is not a de Polignac number, because 27741009 - 2⁹ = 27740497 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27741029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54247 + ... + 54755.

It is an arithmetic number, because the mean of its divisors is an integer number (2383740).

Almost surely, 2^27741009 is an apocalyptic number.

It is an amenable number.

27741009 is a deficient number, since it is larger than the sum of its proper divisors (10398831).

27741009 is a wasteful number, since it uses less digits than its factorization.

27741009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 27741009 is about 5266.9734193368. The cubic root of 27741009 is about 302.7197465293.

The spelling of 27741009 in words is "twenty-seven million, seven hundred forty-one thousand, nine".