27429387 has 8 divisors (see below), whose sum is σ = 36596736. Its totient is φ = 18274152.

The previous prime is 27429379. The next prime is 27429397. The reversal of 27429387 is 78392472.

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

It is not a de Polignac number, because 27429387 - 2³ = 27429379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27429307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7078 + ... + 10244.

It is an arithmetic number, because the mean of its divisors is an integer number (4574592).

Almost surely, 2^27429387 is an apocalyptic number.

27429387 is a deficient number, since it is larger than the sum of its proper divisors (9167349).

27429387 is a wasteful number, since it uses less digits than its factorization.

27429387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6057.

The product of its digits is 169344, while the sum is 42.

The square root of 27429387 is about 5237.3072279560. The cubic root of 27429387 is about 301.5819655095.

The spelling of 27429387 in words is "twenty-seven million, four hundred twenty-nine thousand, three hundred eighty-seven".