683767397 has 2 divisors, whose sum is σ = 683767398. Its totient is φ = 683767396.

The previous prime is 683767349. The next prime is 683767439. The reversal of 683767397 is 793767386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 371679841 + 312087556 = 19279^2 + 17666^2 .

It is a cyclic number.

It is not a de Polignac number, because 683767397 - 2¹⁰ = 683766373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (683763397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341883698 + 341883699.

It is an arithmetic number, because the mean of its divisors is an integer number (341883699).

Almost surely, 2^683767397 is an apocalyptic number.

It is an amenable number.

683767397 is a deficient number, since it is larger than the sum of its proper divisors (1).

683767397 is an equidigital number, since it uses as much as digits as its factorization.

683767397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8001504, while the sum is 56.

The square root of 683767397 is about 26148.9463841280. The cubic root of 683767397 is about 880.9869251990.

The spelling of 683767397 in words is "six hundred eighty-three million, seven hundred sixty-seven thousand, three hundred ninety-seven".