27427398 has 8 divisors (see below), whose sum is σ = 54854808. Its totient is φ = 9142464.

The previous prime is 27427391. The next prime is 27427399. The reversal of 27427398 is 89372472.

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

27427398 is an admirable number.

It is a super-2 number, since 2×27427398² = 1504524322100808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27427391) 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, 2285611 + ... + 2285622.

It is an arithmetic number, because the mean of its divisors is an integer number (6856851).

Almost surely, 2^27427398 is an apocalyptic number.

27427398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27427398 is a wasteful number, since it uses less digits than its factorization.

27427398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571238.

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

The square root of 27427398 is about 5237.1173368562. The cubic root of 27427398 is about 301.5746757485.

It can be divided in two parts, 274 and 27398, that added together give a palindrome (27672).

The spelling of 27427398 in words is "twenty-seven million, four hundred twenty-seven thousand, three hundred ninety-eight".