685001700 has 54 divisors (see below), whose sum is σ = 2147102594. Its totient is φ = 182666880.

The previous prime is 685001687. The next prime is 685001701. The reversal of 685001700 is 7100586.

It can be written as a sum of positive squares in 3 ways, for example, as 226442304 + 458559396 = 15048^2 + 21414^2 .

It is not an unprimeable number, because it can be changed into a prime (685001701) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 379657 + ... + 381456.

Almost surely, 2^685001700 is an apocalyptic number.

685001700 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

685001700 is an abundant number, since it is smaller than the sum of its proper divisors (1462100894).

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

685001700 is a wasteful number, since it uses less digits than its factorization.

685001700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761133 (or 761123 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 685001700 is about 26172.5371334152. The cubic root of 685001700 is about 881.5167111833.

The spelling of 685001700 in words is "six hundred eighty-five million, one thousand, seven hundred".