6776445 has 64 divisors (see below), whose sum is σ = 12902400. Its totient is φ = 3006720.

The previous prime is 6776443. The next prime is 6776449. The reversal of 6776445 is 5446776.

It is not a de Polignac number, because 6776445 - 2¹ = 6776443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6776443) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 114826 + ... + 114884.

It is an arithmetic number, because the mean of its divisors is an integer number (201600).

Almost surely, 2^6776445 is an apocalyptic number.

6776445 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6776445 is a deficient number, since it is larger than the sum of its proper divisors (6125955).

6776445 is a wasteful number, since it uses less digits than its factorization.

6776445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130.

The product of its digits is 141120, while the sum is 39.

The square root of 6776445 is about 2603.1605789885. The cubic root of 6776445 is about 189.2346404100.

6776445 divided by its sum of digits (39) gives a triangular number (173755 = T₅₈₉).

The spelling of 6776445 in words is "six million, seven hundred seventy-six thousand, four hundred forty-five".