696855889 has 4 divisors (see below), whose sum is σ = 696962560. Its totient is φ = 696749220.

The previous prime is 696855871. The next prime is 696855899. The reversal of 696855889 is 988558696.

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 696855889 - 2¹⁷ = 696724817 is a prime.

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 696855889.

It is not an unprimeable number, because it can be changed into a prime (696855829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42849 + ... + 56830.

It is an arithmetic number, because the mean of its divisors is an integer number (174240640).

Almost surely, 2^696855889 is an apocalyptic number.

It is an amenable number.

696855889 is a deficient number, since it is larger than the sum of its proper divisors (106671).

696855889 is an equidigital number, since it uses as much as digits as its factorization.

696855889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106670.

The product of its digits is 37324800, while the sum is 64.

The square root of 696855889 is about 26398.0281271159. The cubic root of 696855889 is about 886.5726403739.

The spelling of 696855889 in words is "six hundred ninety-six million, eight hundred fifty-five thousand, eight hundred eighty-nine".