27399838 has 8 divisors (see below), whose sum is σ = 42517080. Its totient is φ = 13227480.

The previous prime is 27399833. The next prime is 27399839. The reversal of 27399838 is 83899372.

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

It is a super-2 number, since 2×27399838² = 1501502244852488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27399791 and 27399800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27399833) 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, 236148 + ... + 236263.

It is an arithmetic number, because the mean of its divisors is an integer number (5314635).

Almost surely, 2^27399838 is an apocalyptic number.

27399838 is a deficient number, since it is larger than the sum of its proper divisors (15117242).

27399838 is a wasteful number, since it uses less digits than its factorization.

27399838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472442.

The product of its digits is 653184, while the sum is 49.

The square root of 27399838 is about 5234.4854570435. The cubic root of 27399838 is about 301.4736310014.

The spelling of 27399838 in words is "twenty-seven million, three hundred ninety-nine thousand, eight hundred thirty-eight".