696556287 has 16 divisors (see below), whose sum is σ = 1179354880. Its totient is φ = 398032056.

The previous prime is 696556271. The next prime is 696556319. The reversal of 696556287 is 782655696.

It is a happy number.

696556287 is a `hidden beast` number, since 6 + 9 + 6 + 5 + 5 + 628 + 7 = 666.

It is not a de Polignac number, because 696556287 - 2⁴ = 696556271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (696556247) 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 15 ways as a sum of consecutive naturals, for example, 1842553 + ... + 1842930.

It is an arithmetic number, because the mean of its divisors is an integer number (73709680).

Almost surely, 2^696556287 is an apocalyptic number.

696556287 is a deficient number, since it is larger than the sum of its proper divisors (482798593).

696556287 is a wasteful number, since it uses less digits than its factorization.

696556287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685499 (or 3685493 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 696556287 is about 26392.3528128888. The cubic root of 696556287 is about 886.4455662707.

The spelling of 696556287 in words is "six hundred ninety-six million, five hundred fifty-six thousand, two hundred eighty-seven".