684946365 has 8 divisors (see below), whose sum is σ = 1095914208. Its totient is φ = 365304720.

The previous prime is 684946349. The next prime is 684946373. The reversal of 684946365 is 563649486.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 684946365 - 2⁴ = 684946349 is a prime.

It is a Curzon number.

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, 22831531 + ... + 22831560.

It is an arithmetic number, because the mean of its divisors is an integer number (136989276).

Almost surely, 2^684946365 is an apocalyptic number.

It is an amenable number.

684946365 is a deficient number, since it is larger than the sum of its proper divisors (410967843).

684946365 is a wasteful number, since it uses less digits than its factorization.

684946365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45663099.

The product of its digits is 3732480, while the sum is 51.

The square root of 684946365 is about 26171.4799925415. The cubic root of 684946365 is about 881.4929739961.

The spelling of 684946365 in words is "six hundred eighty-four million, nine hundred forty-six thousand, three hundred sixty-five".