27078379 has 2 divisors, whose sum is σ = 27078380. Its totient is φ = 27078378.

The previous prime is 27078371. The next prime is 27078397. The reversal of 27078379 is 97387072.

Together with next prime (27078397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27078379 - 2³ = 27078371 is a prime.

It is not a weakly prime, because it can be changed into another prime (27078371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13539189 + 13539190.

It is an arithmetic number, because the mean of its divisors is an integer number (13539190).

Almost surely, 2^27078379 is an apocalyptic number.

27078379 is a deficient number, since it is larger than the sum of its proper divisors (1).

27078379 is an equidigital number, since it uses as much as digits as its factorization.

27078379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 43.

The square root of 27078379 is about 5203.6889799449. The cubic root of 27078379 is about 300.2900121454.

The spelling of 27078379 in words is "twenty-seven million, seventy-eight thousand, three hundred seventy-nine".