27896481 has 20 divisors (see below), whose sum is σ = 41817600. Its totient is φ = 18533016.

The previous prime is 27896471. The next prime is 27896489. The reversal of 27896481 is 18469872.

It is not a de Polignac number, because 27896481 - 2⁹ = 27895969 is a prime.

It is a super-2 number, since 2×27896481² = 1556427304366722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27896489) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 38440 + ... + 39158.

It is an arithmetic number, because the mean of its divisors is an integer number (2090880).

Almost surely, 2^27896481 is an apocalyptic number.

It is an amenable number.

27896481 is a deficient number, since it is larger than the sum of its proper divisors (13921119).

27896481 is an equidigital number, since it uses as much as digits as its factorization.

27896481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210 (or 1201 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 27896481 is about 5281.7119383776. The cubic root of 27896481 is about 303.2842152351.

The spelling of 27896481 in words is "twenty-seven million, eight hundred ninety-six thousand, four hundred eighty-one".