6655477 has 4 divisors (see below), whose sum is σ = 6660640. Its totient is φ = 6650316.

The previous prime is 6655423. The next prime is 6655531. The reversal of 6655477 is 7745566.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (6655423) and next prime (6655531).

It is a cyclic number.

It is not a de Polignac number, because 6655477 - 2¹¹ = 6653429 is a prime.

It is a Duffinian number.

6655477 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6655577) 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, 1174 + ... + 3832.

It is an arithmetic number, because the mean of its divisors is an integer number (1665160).

Almost surely, 2^6655477 is an apocalyptic number.

It is an amenable number.

6655477 is a deficient number, since it is larger than the sum of its proper divisors (5163).

6655477 is a wasteful number, since it uses less digits than its factorization.

6655477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5162.

The product of its digits is 176400, while the sum is 40.

The square root of 6655477 is about 2579.8211178297. The cubic root of 6655477 is about 188.1018480134.

The spelling of 6655477 in words is "six million, six hundred fifty-five thousand, four hundred seventy-seven".