6696381 has 16 divisors (see below), whose sum is σ = 9414144. Its totient is φ = 4225584.

The previous prime is 6696377. The next prime is 6696383. The reversal of 6696381 is 1836966.

It is a happy number.

It is not a de Polignac number, because 6696381 - 2² = 6696377 is a prime.

It is a super-2 number, since 2×6696381² = 89683036994322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6696383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6930 + ... + 7836.

It is an arithmetic number, because the mean of its divisors is an integer number (588384).

Almost surely, 2^6696381 is an apocalyptic number.

It is an amenable number.

6696381 is a deficient number, since it is larger than the sum of its proper divisors (2717763).

6696381 is a wasteful number, since it uses less digits than its factorization.

6696381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040.

The product of its digits is 46656, while the sum is 39.

The square root of 6696381 is about 2587.7366558443. The cubic root of 6696381 is about 188.4864139443.

The spelling of 6696381 in words is "six million, six hundred ninety-six thousand, three hundred eighty-one".