1695495979 has 2 divisors, whose sum is σ = 1695495980. Its totient is φ = 1695495978.

The previous prime is 1695495947. The next prime is 1695496079. The reversal of 1695495979 is 9795945961.

It is a weak prime.

It is an emirp because it is prime and its reverse (9795945961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1695495979 - 2⁵ = 1695495947 is a prime.

It is a super-2 number, since 2×1695495979² = 5749413229610336882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1695495979.

It is not a weakly prime, because it can be changed into another prime (1695495379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 847747989 + 847747990.

It is an arithmetic number, because the mean of its divisors is an integer number (847747990).

Almost surely, 2^1695495979 is an apocalyptic number.

1695495979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1695495979 is an equidigital number, since it uses as much as digits as its factorization.

1695495979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27556200, while the sum is 64.

The square root of 1695495979 is about 41176.4007533441. The cubic root of 1695495979 is about 1192.4282453269.

It can be divided in two parts, 169549 and 5979, that added together give a triangular number (175528 = T₅₉₂).

The spelling of 1695495979 in words is "one billion, six hundred ninety-five million, four hundred ninety-five thousand, nine hundred seventy-nine".