27413721 has 20 divisors (see below), whose sum is σ = 41347152. Its totient is φ = 18099288.

The previous prime is 27413699. The next prime is 27413731. The reversal of 27413721 is 12731472.

It is a happy number.

It is not a de Polignac number, because 27413721 - 2⁵ = 27413689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (27413731) 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, 7086 + ... + 10248.

Almost surely, 2^27413721 is an apocalyptic number.

It is an amenable number.

27413721 is a deficient number, since it is larger than the sum of its proper divisors (13933431).

27413721 is a wasteful number, since it uses less digits than its factorization.

27413721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282 (or 3273 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 27413721 is about 5235.8113984367. The cubic root of 27413721 is about 301.5245394744.

The spelling of 27413721 in words is "twenty-seven million, four hundred thirteen thousand, seven hundred twenty-one".