694853849 has 2 divisors, whose sum is σ = 694853850. Its totient is φ = 694853848.

The previous prime is 694853843. The next prime is 694853879. The reversal of 694853849 is 948358496.

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., 381811600 + 313042249 = 19540^2 + 17693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-694853849 is a prime.

It is a super-2 number, since 2×694853849² = 965643742940229602, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 694853794 and 694853803.

It is not a weakly prime, because it can be changed into another prime (694853843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347426924 + 347426925.

It is an arithmetic number, because the mean of its divisors is an integer number (347426925).

Almost surely, 2^694853849 is an apocalyptic number.

It is an amenable number.

694853849 is a deficient number, since it is larger than the sum of its proper divisors (1).

694853849 is an equidigital number, since it uses as much as digits as its factorization.

694853849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7464960, while the sum is 56.

The square root of 694853849 is about 26360.0805954762. The cubic root of 694853849 is about 885.7227963691.

The spelling of 694853849 in words is "six hundred ninety-four million, eight hundred fifty-three thousand, eight hundred forty-nine".