27398933 has 6 divisors (see below), whose sum is σ = 27954774. Its totient is φ = 26844584.

The previous prime is 27398929. The next prime is 27398953. The reversal of 27398933 is 33989372.

It can be written as a sum of positive squares in only one way, i.e., 25331089 + 2067844 = 5033^2 + 1438^2 .

It is not a de Polignac number, because 27398933 - 2² = 27398929 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 (27398923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37748 + ... + 38466.

It is an arithmetic number, because the mean of its divisors is an integer number (4659129).

Almost surely, 2^27398933 is an apocalyptic number.

It is an amenable number.

27398933 is a deficient number, since it is larger than the sum of its proper divisors (555841).

27398933 is an frugal number, since it uses more digits than its factorization.

27398933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491 (or 772 counting only the distinct ones).

The product of its digits is 244944, while the sum is 44.

The square root of 27398933 is about 5234.3990103927. The cubic root of 27398933 is about 301.4703118013.

The spelling of 27398933 in words is "twenty-seven million, three hundred ninety-eight thousand, nine hundred thirty-three".