27402147 has 12 divisors (see below), whose sum is σ = 41909400. Its totient is φ = 17193408.

The previous prime is 27402119. The next prime is 27402149. The reversal of 27402147 is 74120472.

It is a happy number.

It is not a de Polignac number, because 27402147 - 2¹⁹ = 26877859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27402147.

It is not an unprimeable number, because it can be changed into a prime (27402149) 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 11 ways as a sum of consecutive naturals, for example, 89397 + ... + 89702.

It is an arithmetic number, because the mean of its divisors is an integer number (3492450).

Almost surely, 2^27402147 is an apocalyptic number.

27402147 is a deficient number, since it is larger than the sum of its proper divisors (14507253).

27402147 is a wasteful number, since it uses less digits than its factorization.

27402147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179122 (or 179119 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 27402147 is about 5234.7060089369. The cubic root of 27402147 is about 301.4820992153.

The spelling of 27402147 in words is "twenty-seven million, four hundred two thousand, one hundred forty-seven".