6745779 has 24 divisors (see below), whose sum is σ = 10383360. Its totient is φ = 4208112.

The previous prime is 6745763. The next prime is 6745801. The reversal of 6745779 is 9775476.

6745779 is a `hidden beast` number, since 6 + 74 + 577 + 9 = 666.

It is not a de Polignac number, because 6745779 - 2⁴ = 6745763 is a prime.

It is a super-3 number, since 3×6745779³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (6745709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17422 + ... + 17804.

It is an arithmetic number, because the mean of its divisors is an integer number (432640).

Almost surely, 2^6745779 is an apocalyptic number.

6745779 is a deficient number, since it is larger than the sum of its proper divisors (3637581).

6745779 is a wasteful number, since it uses less digits than its factorization.

6745779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 508 counting only the distinct ones).

The product of its digits is 370440, while the sum is 45.

The square root of 6745779 is about 2597.2637524903. The cubic root of 6745779 is about 188.9487557385.

The spelling of 6745779 in words is "six million, seven hundred forty-five thousand, seven hundred seventy-nine".