27389434 has 8 divisors (see below), whose sum is σ = 41214708. Its totient is φ = 13651200.

The previous prime is 27389429. The next prime is 27389441. The reversal of 27389434 is 43498372.

27389434 = T₂₄₇ + T₂₄₈ + ... + T₅₆₃.

It can be written as a sum of positive squares in 2 ways, for example, as 26574025 + 815409 = 5155^2 + 903^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20967 + ... + 22234.

Almost surely, 2^27389434 is an apocalyptic number.

27389434 is a deficient number, since it is larger than the sum of its proper divisors (13825274).

27389434 is a wasteful number, since it uses less digits than its factorization.

27389434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43520.

The product of its digits is 145152, while the sum is 40.

The square root of 27389434 is about 5233.4915687331. The cubic root of 27389434 is about 301.4354686258.

The spelling of 27389434 in words is "twenty-seven million, three hundred eighty-nine thousand, four hundred thirty-four".