6779725 has 12 divisors (see below), whose sum is σ = 8471680. Its totient is φ = 5382000.

The previous prime is 6779711. The next prime is 6779743. The reversal of 6779725 is 5279776.

It is a happy number.

It is not a de Polignac number, because 6779725 - 2⁵ = 6779693 is a prime.

It is a d-powerful number, because it can be written as 6⁵ + 7³ + 7³ + 9⁷ + 7⁴ + 2¹⁵ + 5⁹ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2500 + ... + 4450.

Almost surely, 2^6779725 is an apocalyptic number.

It is an amenable number.

6779725 is a deficient number, since it is larger than the sum of its proper divisors (1691955).

6779725 is a wasteful number, since it uses less digits than its factorization.

6779725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100 (or 2095 counting only the distinct ones).

The product of its digits is 185220, while the sum is 43.

The square root of 6779725 is about 2603.7905061660. The cubic root of 6779725 is about 189.2651672081.

The spelling of 6779725 in words is "six million, seven hundred seventy-nine thousand, seven hundred twenty-five".