685117464 has 32 divisors (see below), whose sum is σ = 1713664320. Its totient is φ = 228256416.

The previous prime is 685117439. The next prime is 685117481. The reversal of 685117464 is 464711586.

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, 50247 + ... + 62409.

It is an arithmetic number, because the mean of its divisors is an integer number (53552010).

Almost surely, 2^685117464 is an apocalyptic number.

It is an amenable number.

685117464 is an abundant number, since it is smaller than the sum of its proper divisors (1028546856).

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

685117464 is a wasteful number, since it uses less digits than its factorization.

685117464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14519 (or 14515 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 685117464 is about 26174.7485947812. The cubic root of 685117464 is about 881.5663666087.

The spelling of 685117464 in words is "six hundred eighty-five million, one hundred seventeen thousand, four hundred sixty-four".