6973649 has 8 divisors (see below), whose sum is σ = 7338408. Its totient is φ = 6618240.

The previous prime is 6973639. The next prime is 6973651. The reversal of 6973649 is 9463796.

It can be written as a sum of positive squares in 4 ways, for example, as 46225 + 6927424 = 215^2 + 2632^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6973649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6973609) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 782 + ... + 3815.

It is an arithmetic number, because the mean of its divisors is an integer number (917301).

Almost surely, 2^6973649 is an apocalyptic number.

It is an amenable number.

6973649 is a deficient number, since it is larger than the sum of its proper divisors (364759).

6973649 is a wasteful number, since it uses less digits than its factorization.

6973649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675.

The product of its digits is 244944, while the sum is 44.

The square root of 6973649 is about 2640.7667447164. The cubic root of 6973649 is about 191.0527800191.

The spelling of 6973649 in words is "six million, nine hundred seventy-three thousand, six hundred forty-nine".