27897201 has 12 divisors (see below), whose sum is σ = 40614912. Its totient is φ = 18450936.

The previous prime is 27897193. The next prime is 27897203. The reversal of 27897201 is 10279872.

It is not a de Polignac number, because 27897201 - 2³ = 27897193 is a prime.

It is a super-3 number, since 3×27897201³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (27897203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11061 + ... + 13346.

It is an arithmetic number, because the mean of its divisors is an integer number (3384576).

Almost surely, 2^27897201 is an apocalyptic number.

It is an amenable number.

27897201 is a deficient number, since it is larger than the sum of its proper divisors (12717711).

27897201 is a wasteful number, since it uses less digits than its factorization.

27897201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24540 (or 24537 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 27897201 is about 5281.7800976565. The cubic root of 27897201 is about 303.2868244383.

It can be divided in two parts, 278 and 97201, that added together give a palindrome (97479).

The spelling of 27897201 in words is "twenty-seven million, eight hundred ninety-seven thousand, two hundred one".