694196449 has 2 divisors, whose sum is σ = 694196450. Its totient is φ = 694196448.

The previous prime is 694196353. The next prime is 694196471. The reversal of 694196449 is 944691496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 599270400 + 94926049 = 24480^2 + 9743^2 .

It is a cyclic number.

It is not a de Polignac number, because 694196449 - 2⁹ = 694195937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 694196396 and 694196405.

It is not a weakly prime, because it can be changed into another prime (694196149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347098224 + 347098225.

It is an arithmetic number, because the mean of its divisors is an integer number (347098225).

Almost surely, 2^694196449 is an apocalyptic number.

It is an amenable number.

694196449 is a deficient number, since it is larger than the sum of its proper divisors (1).

694196449 is an equidigital number, since it uses as much as digits as its factorization.

694196449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 52.

The square root of 694196449 is about 26347.6080318499. The cubic root of 694196449 is about 885.4433813078.

The spelling of 694196449 in words is "six hundred ninety-four million, one hundred ninety-six thousand, four hundred forty-nine".