6677381 has 4 divisors (see below), whose sum is σ = 6682572. Its totient is φ = 6672192.

The previous prime is 6677357. The next prime is 6677389. The reversal of 6677381 is 1837766.

6677381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1876900 + 4800481 = 1370^2 + 2191^2 .

It is a cyclic number.

It is not a de Polignac number, because 6677381 - 2¹⁸ = 6415237 is a prime.

It is a super-2 number, since 2×6677381² = 89174834038322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6677389) 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, 941 + ... + 3773.

It is an arithmetic number, because the mean of its divisors is an integer number (1670643).

Almost surely, 2^6677381 is an apocalyptic number.

It is an amenable number.

6677381 is a deficient number, since it is larger than the sum of its proper divisors (5191).

6677381 is a wasteful number, since it uses less digits than its factorization.

6677381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5190.

The product of its digits is 42336, while the sum is 38.

The square root of 6677381 is about 2584.0628862317. The cubic root of 6677381 is about 188.3079775473.

The spelling of 6677381 in words is "six million, six hundred seventy-seven thousand, three hundred eighty-one".