7677764 has 6 divisors (see below), whose sum is σ = 13436094. Its totient is φ = 3838880.

The previous prime is 7677757. The next prime is 7677793. The reversal of 7677764 is 4677767.

It can be written as a sum of positive squares in only one way, i.e., 6760000 + 917764 = 2600^2 + 958^2 .

It is a d-powerful number, because it can be written as 7⁴ + 6² + 7⁷ + 7⁷ + 7⁸ + 6⁴ + 4⁹ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 959717 + ... + 959724.

It is an arithmetic number, because the mean of its divisors is an integer number (2239349).

Almost surely, 2^7677764 is an apocalyptic number.

It is an amenable number.

7677764 is a deficient number, since it is larger than the sum of its proper divisors (5758330).

7677764 is a wasteful number, since it uses less digits than its factorization.

7677764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919445 (or 1919443 counting only the distinct ones).

The product of its digits is 345744, while the sum is 44.

The square root of 7677764 is about 2770.8778392416. The cubic root of 7677764 is about 197.2778166914.

The spelling of 7677764 in words is "seven million, six hundred seventy-seven thousand, seven hundred sixty-four".