685967298 has 16 divisors (see below), whose sum is σ = 1444141920. Its totient is φ = 216621216.

The previous prime is 685967273. The next prime is 685967327. The reversal of 685967298 is 892769586.

It is a happy number.

It is a super-2 number, since 2×685967298² = 941102267850841608, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3008515 + ... + 3008742.

It is an arithmetic number, because the mean of its divisors is an integer number (90258870).

Almost surely, 2^685967298 is an apocalyptic number.

685967298 is an abundant number, since it is smaller than the sum of its proper divisors (758174622).

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

685967298 is a wasteful number, since it uses less digits than its factorization.

685967298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6017281.

The product of its digits is 13063680, while the sum is 60.

The square root of 685967298 is about 26190.9774158965. The cubic root of 685967298 is about 881.9307204390.

The spelling of 685967298 in words is "six hundred eighty-five million, nine hundred sixty-seven thousand, two hundred ninety-eight".