1705967397 has 12 divisors (see below), whose sum is σ = 2491863660. Its totient is φ = 1124532288.

The previous prime is 1705967387. The next prime is 1705967407. The reversal of 1705967397 is 7937695071.

1705967397 is a `hidden beast` number, since 17 + 0 + 596 + 7 + 39 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (1705967387) and next prime (1705967407).

It can be written as a sum of positive squares in 2 ways, for example, as 921183201 + 784784196 = 30351^2 + 28014^2 .

It is not a de Polignac number, because 1705967397 - 2⁴ = 1705967381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1705967327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1064098 + ... + 1065699.

It is an arithmetic number, because the mean of its divisors is an integer number (207655305).

Almost surely, 2^1705967397 is an apocalyptic number.

It is an amenable number.

1705967397 is a deficient number, since it is larger than the sum of its proper divisors (785896263).

1705967397 is a wasteful number, since it uses less digits than its factorization.

1705967397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129892 (or 2129889 counting only the distinct ones).

The product of its (nonzero) digits is 2500470, while the sum is 54.

The square root of 1705967397 is about 41303.3581806613. The cubic root of 1705967397 is about 1194.8780293689.

The spelling of 1705967397 in words is "one billion, seven hundred five million, nine hundred sixty-seven thousand, three hundred ninety-seven".