695671049 has 2 divisors, whose sum is σ = 695671050. Its totient is φ = 695671048.

The previous prime is 695671037. The next prime is 695671051. The reversal of 695671049 is 940176596.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 518381824 + 177289225 = 22768^2 + 13315^2 .

It is a cyclic number.

It is not a de Polignac number, because 695671049 - 2¹² = 695666953 is a prime.

Together with 695671051, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 695670994 and 695671012.

It is not a weakly prime, because it can be changed into another prime (695671069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347835524 + 347835525.

It is an arithmetic number, because the mean of its divisors is an integer number (347835525).

Almost surely, 2^695671049 is an apocalyptic number.

It is an amenable number.

695671049 is a deficient number, since it is larger than the sum of its proper divisors (1).

695671049 is an equidigital number, since it uses as much as digits as its factorization.

695671049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 695671049 is about 26375.5767519878. The cubic root of 695671049 is about 886.0698857140.

The spelling of 695671049 in words is "six hundred ninety-five million, six hundred seventy-one thousand, forty-nine".