695517001 has 2 divisors, whose sum is σ = 695517002. Its totient is φ = 695517000.

The previous prime is 695516999. The next prime is 695517019. The reversal of 695517001 is 100715596.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 610139401 + 85377600 = 24701^2 + 9240^2 .

It is a cyclic number.

It is not a de Polignac number, because 695517001 - 2¹ = 695516999 is a prime.

Together with 695516999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (695511001) 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, 347758500 + 347758501.

It is an arithmetic number, because the mean of its divisors is an integer number (347758501).

Almost surely, 2^695517001 is an apocalyptic number.

It is an amenable number.

695517001 is a deficient number, since it is larger than the sum of its proper divisors (1).

695517001 is an equidigital number, since it uses as much as digits as its factorization.

695517001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 695517001 is about 26372.6563129314. The cubic root of 695517001 is about 886.0044777072.

The spelling of 695517001 in words is "six hundred ninety-five million, five hundred seventeen thousand, one".