6730557 has 8 divisors (see below), whose sum is σ = 9121440. Its totient is φ = 4413360.

The previous prime is 6730547. The next prime is 6730561. The reversal of 6730557 is 7550376.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6730557 - 2¹⁰ = 6729533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6730547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18207 + ... + 18572.

It is an arithmetic number, because the mean of its divisors is an integer number (1140180).

Almost surely, 2^6730557 is an apocalyptic number.

It is an amenable number.

6730557 is a deficient number, since it is larger than the sum of its proper divisors (2390883).

6730557 is a wasteful number, since it uses less digits than its factorization.

6730557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36843.

The product of its (nonzero) digits is 22050, while the sum is 33.

The square root of 6730557 is about 2594.3317058541. The cubic root of 6730557 is about 188.8065263502.

The spelling of 6730557 in words is "six million, seven hundred thirty thousand, five hundred fifty-seven".