27641061 has 16 divisors (see below), whose sum is σ = 46800000. Its totient is φ = 15794784.

The previous prime is 27641017. The next prime is 27641063. The reversal of 27641061 is 16014672.

It is not a de Polignac number, because 27641061 - 2¹¹ = 27639013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27641063) 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, 72936 + ... + 73313.

It is an arithmetic number, because the mean of its divisors is an integer number (2925000).

Almost surely, 2^27641061 is an apocalyptic number.

27641061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

27641061 is a deficient number, since it is larger than the sum of its proper divisors (19158939).

27641061 is a wasteful number, since it uses less digits than its factorization.

27641061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146265 (or 146259 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 27641061 is about 5257.4766761252. The cubic root of 27641061 is about 302.3557530058.

The spelling of 27641061 in words is "twenty-seven million, six hundred forty-one thousand, sixty-one".