27056778 has 32 divisors (see below), whose sum is σ = 62016000. Its totient is φ = 7709040.

The previous prime is 27056773. The next prime is 27056791. The reversal of 27056778 is 87765072.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (27056773) 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, 20313 + ... + 21603.

It is an arithmetic number, because the mean of its divisors is an integer number (1938000).

Almost surely, 2^27056778 is an apocalyptic number.

27056778 is an abundant number, since it is smaller than the sum of its proper divisors (34959222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27056778 is a wasteful number, since it uses less digits than its factorization.

27056778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802.

The product of its (nonzero) digits is 164640, while the sum is 42.

The square root of 27056778 is about 5201.6130190548. The cubic root of 27056778 is about 300.2101416561.

The spelling of 27056778 in words is "twenty-seven million, fifty-six thousand, seven hundred seventy-eight".