27679305 has 16 divisors (see below), whose sum is σ = 45368064. Its totient is φ = 14401920.

The previous prime is 27679297. The next prime is 27679313. The reversal of 27679305 is 50397672.

It is an interprime number because it is at equal distance from previous prime (27679297) and next prime (27679313).

It is not a de Polignac number, because 27679305 - 2³ = 27679297 is a prime.

It is a super-2 number, since 2×27679305² = 1532287850566050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21889 + ... + 23118.

It is an arithmetic number, because the mean of its divisors is an integer number (2835504).

Almost surely, 2^27679305 is an apocalyptic number.

It is an amenable number.

27679305 is a deficient number, since it is larger than the sum of its proper divisors (17688759).

27679305 is a wasteful number, since it uses less digits than its factorization.

27679305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45056.

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 27679305 is about 5261.1125249323. The cubic root of 27679305 is about 302.4951345892.

The spelling of 27679305 in words is "twenty-seven million, six hundred seventy-nine thousand, three hundred five".