6427730 has 16 divisors (see below), whose sum is σ = 11678040. Its totient is φ = 2547072.

The previous prime is 6427727. The next prime is 6427739. The reversal of 6427730 is 377246.

It can be written as a sum of positive squares in 4 ways, for example, as 6345361 + 82369 = 2519^2 + 287^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6427693 and 6427702.

It is not an unprimeable number, because it can be changed into a prime (6427739) 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, 1859 + ... + 4038.

Almost surely, 2^6427730 is an apocalyptic number.

6427730 is a deficient number, since it is larger than the sum of its proper divisors (5250310).

6427730 is a wasteful number, since it uses less digits than its factorization.

6427730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6013.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 6427730 is about 2535.2968268035. The cubic root of 6427730 is about 185.9313154500.

The spelling of 6427730 in words is "six million, four hundred twenty-seven thousand, seven hundred thirty".