695980819 has 8 divisors (see below), whose sum is σ = 701784000. Its totient is φ = 690199272.

The previous prime is 695980807. The next prime is 695980829. The reversal of 695980819 is 918089596.

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

It is a cyclic number.

It is not a de Polignac number, because 695980819 - 2⁵ = 695980787 is a prime.

It is a super-4 number, since 4×695980819⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 695980819.

It is not an unprimeable number, because it can be changed into a prime (695980829) 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 in 7 ways as a sum of consecutive naturals, for example, 62712 + ... + 72970.

It is an arithmetic number, because the mean of its divisors is an integer number (87723000).

Almost surely, 2^695980819 is an apocalyptic number.

695980819 is a deficient number, since it is larger than the sum of its proper divisors (5803181).

695980819 is a wasteful number, since it uses less digits than its factorization.

695980819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10817.

The product of its (nonzero) digits is 1399680, while the sum is 55.

The square root of 695980819 is about 26381.4483870769. The cubic root of 695980819 is about 886.2013832750.

It can be divided in two parts, 6959 and 80819, that added together give a palindrome (87778).

The spelling of 695980819 in words is "six hundred ninety-five million, nine hundred eighty thousand, eight hundred nineteen".