685341662 has 4 divisors (see below), whose sum is σ = 1028012496. Its totient is φ = 342670830.

The previous prime is 685341617. The next prime is 685341667. The reversal of 685341662 is 266143586.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 266143586 = 2 ⋅133071793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685341667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171335414 + ... + 171335417.

It is an arithmetic number, because the mean of its divisors is an integer number (257003124).

Almost surely, 2^685341662 is an apocalyptic number.

685341662 is a deficient number, since it is larger than the sum of its proper divisors (342670834).

685341662 is a wasteful number, since it uses less digits than its factorization.

685341662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342670833.

The product of its digits is 207360, while the sum is 41.

The square root of 685341662 is about 26179.0309599114. The cubic root of 685341662 is about 881.6625174497.

The spelling of 685341662 in words is "six hundred eighty-five million, three hundred forty-one thousand, six hundred sixty-two".