6749577 has 12 divisors (see below), whose sum is σ = 10013380. Its totient is φ = 4377888.

The previous prime is 6749569. The next prime is 6749593. The reversal of 6749577 is 7759476.

6749577 is a `hidden beast` number, since 6 + 74 + 9 + 577 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5659641 + 1089936 = 2379^2 + 1044^2 .

It is not a de Polignac number, because 6749577 - 2³ = 6749569 is a prime.

It is a d-powerful number, because it can be written as 6² + 7⁵ + 4⁸ + 9³ + 5⁷ + 7⁷ + 7⁸ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6749177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9802 + ... + 10467.

Almost surely, 2^6749577 is an apocalyptic number.

It is an amenable number.

6749577 is a deficient number, since it is larger than the sum of its proper divisors (3263803).

6749577 is a wasteful number, since it uses less digits than its factorization.

6749577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20312 (or 20309 counting only the distinct ones).

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

The square root of 6749577 is about 2597.9948036900. The cubic root of 6749577 is about 188.9842096491.

The spelling of 6749577 in words is "six million, seven hundred forty-nine thousand, five hundred seventy-seven".