27398397 has 8 divisors (see below), whose sum is σ = 39341344. Its totient is φ = 16860528.

The previous prime is 27398387. The next prime is 27398411. The reversal of 27398397 is 79389372.

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

It is not a de Polignac number, because 27398397 - 2⁴ = 27398381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27398317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351223 + ... + 351300.

It is an arithmetic number, because the mean of its divisors is an integer number (4917668).

Almost surely, 2^27398397 is an apocalyptic number.

It is an amenable number.

27398397 is a deficient number, since it is larger than the sum of its proper divisors (11942947).

27398397 is a wasteful number, since it uses less digits than its factorization.

27398397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702539.

The product of its digits is 571536, while the sum is 48.

The square root of 27398397 is about 5234.3478103771. The cubic root of 27398397 is about 301.4683459201.

The spelling of 27398397 in words is "twenty-seven million, three hundred ninety-eight thousand, three hundred ninety-seven".