6693961 has 2 divisors, whose sum is σ = 6693962. Its totient is φ = 6693960.

The previous prime is 6693949. The next prime is 6693991. The reversal of 6693961 is 1693966.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6661561 + 32400 = 2581^2 + 180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6693961 is a prime.

It is a super-2 number, since 2×6693961² = 89618227739042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6693901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3346980 + 3346981.

It is an arithmetic number, because the mean of its divisors is an integer number (3346981).

Almost surely, 2^6693961 is an apocalyptic number.

It is an amenable number.

6693961 is a deficient number, since it is larger than the sum of its proper divisors (1).

6693961 is an equidigital number, since it uses as much as digits as its factorization.

6693961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 40.

The square root of 6693961 is about 2587.2690235072. The cubic root of 6693961 is about 188.4637055550.

The spelling of 6693961 in words is "six million, six hundred ninety-three thousand, nine hundred sixty-one".