27690398 has 8 divisors (see below), whose sum is σ = 41585592. Its totient is φ = 13828536.

The previous prime is 27690373. The next prime is 27690427. The reversal of 27690398 is 89309672.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6140 + ... + 9647.

It is an arithmetic number, because the mean of its divisors is an integer number (5198199).

Almost surely, 2^27690398 is an apocalyptic number.

27690398 is a deficient number, since it is larger than the sum of its proper divisors (13895194).

27690398 is a wasteful number, since it uses less digits than its factorization.

27690398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16666.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 27690398 is about 5262.1666640273. The cubic root of 27690398 is about 302.5355393893.

The spelling of 27690398 in words is "twenty-seven million, six hundred ninety thousand, three hundred ninety-eight".