6655427 has 4 divisors (see below), whose sum is σ = 6684720. Its totient is φ = 6626136.

The previous prime is 6655423. The next prime is 6655531. The reversal of 6655427 is 7245566.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7245566 = 2 ⋅3622783.

It is a cyclic number.

It is not a de Polignac number, because 6655427 - 2² = 6655423 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6655423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14303 + ... + 14760.

It is an arithmetic number, because the mean of its divisors is an integer number (1671180).

Almost surely, 2^6655427 is an apocalyptic number.

6655427 is a deficient number, since it is larger than the sum of its proper divisors (29293).

6655427 is a wasteful number, since it uses less digits than its factorization.

6655427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29292.

The product of its digits is 50400, while the sum is 35.

The square root of 6655427 is about 2579.8114272171. The cubic root of 6655427 is about 188.1013769670.

The spelling of 6655427 in words is "six million, six hundred fifty-five thousand, four hundred twenty-seven".