6776138 has 4 divisors (see below), whose sum is σ = 10164210. Its totient is φ = 3388068.

The previous prime is 6776123. The next prime is 6776153. The reversal of 6776138 is 8316776.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6776123) and next prime (6776153).

It can be written as a sum of positive squares in only one way, i.e., 6775609 + 529 = 2603^2 + 23^2 .

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1694033 + ... + 1694036.

Almost surely, 2^6776138 is an apocalyptic number.

6776138 is a deficient number, since it is larger than the sum of its proper divisors (3388072).

6776138 is a wasteful number, since it uses less digits than its factorization.

6776138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388071.

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

The square root of 6776138 is about 2603.1016115396. The cubic root of 6776138 is about 189.2317826721.

The spelling of 6776138 in words is "six million, seven hundred seventy-six thousand, one hundred thirty-eight".