6727638 has 16 divisors (see below), whose sum is σ = 14040576. Its totient is φ = 2145000.

The previous prime is 6727621. The next prime is 6727657. The reversal of 6727638 is 8367276.

It is a super-2 number, since 2×6727638² = 90522226118088, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 6727596 and 6727605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24238 + ... + 24513.

It is an arithmetic number, because the mean of its divisors is an integer number (877536).

Almost surely, 2^6727638 is an apocalyptic number.

6727638 is an abundant number, since it is smaller than the sum of its proper divisors (7312938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6727638 is a wasteful number, since it uses less digits than its factorization.

6727638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48779.

The product of its digits is 84672, while the sum is 39.

The square root of 6727638 is about 2593.7690722190. The cubic root of 6727638 is about 188.7792276713.

The spelling of 6727638 in words is "six million, seven hundred twenty-seven thousand, six hundred thirty-eight".