27690146 has 8 divisors (see below), whose sum is σ = 45311184. Its totient is φ = 12586420.

The previous prime is 27690139. The next prime is 27690149. The reversal of 27690146 is 64109672.

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

It is not an unprimeable number, because it can be changed into a prime (27690149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629300 + ... + 629343.

It is an arithmetic number, because the mean of its divisors is an integer number (5663898).

Almost surely, 2^27690146 is an apocalyptic number.

27690146 is a deficient number, since it is larger than the sum of its proper divisors (17621038).

27690146 is a wasteful number, since it uses less digits than its factorization.

27690146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258656.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 27690146 is about 5262.1427194632. The cubic root of 27690146 is about 302.5346216321.

The spelling of 27690146 in words is "twenty-seven million, six hundred ninety thousand, one hundred forty-six".