695638745 has 8 divisors (see below), whose sum is σ = 834909000. Its totient is φ = 556416000.

The previous prime is 695638711. The next prime is 695638753. The reversal of 695638745 is 547836596.

It can be written as a sum of positive squares in 4 ways, for example, as 5683456 + 689955289 = 2384^2 + 26267^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 695638745 - 2¹² = 695634649 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 45881 + ... + 59129.

It is an arithmetic number, because the mean of its divisors is an integer number (104363625).

Almost surely, 2^695638745 is an apocalyptic number.

It is an amenable number.

695638745 is a deficient number, since it is larger than the sum of its proper divisors (139270255).

695638745 is a wasteful number, since it uses less digits than its factorization.

695638745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23755.

The product of its digits is 5443200, while the sum is 53.

The square root of 695638745 is about 26374.9643601655. The cubic root of 695638745 is about 886.0561703981.

The spelling of 695638745 in words is "six hundred ninety-five million, six hundred thirty-eight thousand, seven hundred forty-five".