27043641 has 24 divisors (see below), whose sum is σ = 40543776. Its totient is φ = 17357760.

The previous prime is 27043637. The next prime is 27043691. The reversal of 27043641 is 14634072.

It is not a de Polignac number, because 27043641 - 2² = 27043637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27043691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30186 + ... + 31068.

It is an arithmetic number, because the mean of its divisors is an integer number (1689324).

Almost surely, 2^27043641 is an apocalyptic number.

It is an amenable number.

27043641 is a deficient number, since it is larger than the sum of its proper divisors (13500135).

27043641 is a wasteful number, since it uses less digits than its factorization.

27043641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 1010 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 27043641 is about 5200.3500843693. The cubic root of 27043641 is about 300.1615463270.

The spelling of 27043641 in words is "twenty-seven million, forty-three thousand, six hundred forty-one".