695982987 has 48 divisors (see below), whose sum is σ = 1189773312. Its totient is φ = 383745600.

The previous prime is 695982929. The next prime is 695983019. The reversal of 695982987 is 789289596.

It is not a de Polignac number, because 695982987 - 2¹⁰ = 695981963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (695982887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 294862 + ... + 297212.

It is an arithmetic number, because the mean of its divisors is an integer number (24786944).

Almost surely, 2^695982987 is an apocalyptic number.

695982987 is a deficient number, since it is larger than the sum of its proper divisors (493790325).

695982987 is a wasteful number, since it uses less digits than its factorization.

695982987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528 (or 2525 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The square root of 695982987 is about 26381.4894765250. The cubic root of 695982987 is about 886.2023034549.

The spelling of 695982987 in words is "six hundred ninety-five million, nine hundred eighty-two thousand, nine hundred eighty-seven".