695980849 has 4 divisors (see below), whose sum is σ = 732611440. Its totient is φ = 659350260.

The previous prime is 695980847. The next prime is 695980891. The reversal of 695980849 is 948089596.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 695980849 - 2¹ = 695980847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 695980793 and 695980802.

It is not an unprimeable number, because it can be changed into a prime (695980847) 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 3 ways as a sum of consecutive naturals, for example, 18315267 + ... + 18315304.

It is an arithmetic number, because the mean of its divisors is an integer number (183152860).

Almost surely, 2^695980849 is an apocalyptic number.

It is an amenable number.

695980849 is a deficient number, since it is larger than the sum of its proper divisors (36630591).

695980849 is a wasteful number, since it uses less digits than its factorization.

695980849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36630590.

The product of its (nonzero) digits is 5598720, while the sum is 58.

The square root of 695980849 is about 26381.4489556582. The cubic root of 695980849 is about 886.2013960081.

The spelling of 695980849 in words is "six hundred ninety-five million, nine hundred eighty thousand, eight hundred forty-nine".