27798386 has 48 divisors (see below), whose sum is σ = 53631072. Its totient is φ = 10684800.

The previous prime is 27798377. The next prime is 27798389. The reversal of 27798386 is 68389772.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27798389) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115226 + ... + 115466.

It is an arithmetic number, because the mean of its divisors is an integer number (1117314).

Almost surely, 2^27798386 is an apocalyptic number.

27798386 is a deficient number, since it is larger than the sum of its proper divisors (25832686).

27798386 is a wasteful number, since it uses less digits than its factorization.

27798386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 368 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 50.

The square root of 27798386 is about 5272.4174720900. The cubic root of 27798386 is about 302.9283088748.

It can be divided in two parts, 27798 and 386, that multiplied together give a triangular number (10730028 = T₄₆₃₂).

The spelling of 27798386 in words is "twenty-seven million, seven hundred ninety-eight thousand, three hundred eighty-six".