7067749 has 8 divisors (see below), whose sum is σ = 7658840. Its totient is φ = 6522048.

The previous prime is 7067747. The next prime is 7067761. The reversal of 7067749 is 9477607.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 842724 + 6225025 = 918^2 + 2495^2 .

It is not a de Polignac number, because 7067749 - 2¹ = 7067747 is a prime.

It is a Duffinian number.

7067749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7067747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589 + ... + 3805.

It is an arithmetic number, because the mean of its divisors is an integer number (957355).

Almost surely, 2^7067749 is an apocalyptic number.

It is an amenable number.

7067749 is a deficient number, since it is larger than the sum of its proper divisors (591091).

7067749 is an equidigital number, since it uses as much as digits as its factorization.

7067749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3256 (or 3230 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 7067749 is about 2658.5238385239. The cubic root of 7067749 is about 191.9082768628.

The spelling of 7067749 in words is "seven million, sixty-seven thousand, seven hundred forty-nine".