685277776 has 40 divisors (see below), whose sum is σ = 1343913984. Its totient is φ = 338486400.

The previous prime is 685277759. The next prime is 685277783. The reversal of 685277776 is 677772586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594801 + ... + 595951.

Almost surely, 2^685277776 is an apocalyptic number.

It is an amenable number.

685277776 is a deficient number, since it is larger than the sum of its proper divisors (658636208).

685277776 is a wasteful number, since it uses less digits than its factorization.

685277776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579 (or 1573 counting only the distinct ones).

The product of its digits is 6914880, while the sum is 55.

The square root of 685277776 is about 26177.8107564403. The cubic root of 685277776 is about 881.6351210697.

The spelling of 685277776 in words is "six hundred eighty-five million, two hundred seventy-seven thousand, seven hundred seventy-six".