691773336 has 48 divisors (see below), whose sum is σ = 1917132360. Its totient is φ = 225227520.

The previous prime is 691773317. The next prime is 691773353. The reversal of 691773336 is 633377196.

It is a junction number, because it is equal to n+sod(n) for n = 691773291 and 691773300.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 108625 + ... + 114816.

Almost surely, 2^691773336 is an apocalyptic number.

It is an amenable number.

691773336 is an abundant number, since it is smaller than the sum of its proper divisors (1225359024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

691773336 is a wasteful number, since it uses less digits than its factorization.

691773336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223496 (or 223489 counting only the distinct ones).

The product of its digits is 428652, while the sum is 45.

The square root of 691773336 is about 26301.5842868828. The cubic root of 691773336 is about 884.4119583018.

The spelling of 691773336 in words is "six hundred ninety-one million, seven hundred seventy-three thousand, three hundred thirty-six".