684343297 has 8 divisors (see below), whose sum is σ = 747064800. Its totient is φ = 621706560.

The previous prime is 684343243. The next prime is 684343307. The reversal of 684343297 is 792343486.

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

It is a cyclic number.

It is not a de Polignac number, because 684343297 - 2²³ = 675954689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (684343397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3672 + ... + 37177.

It is an arithmetic number, because the mean of its divisors is an integer number (93383100).

Almost surely, 2^684343297 is an apocalyptic number.

It is an amenable number.

684343297 is a deficient number, since it is larger than the sum of its proper divisors (62721503).

684343297 is a wasteful number, since it uses less digits than its factorization.

684343297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42383.

The product of its digits is 870912, while the sum is 46.

The square root of 684343297 is about 26159.9559823789. The cubic root of 684343297 is about 881.2341915445.

The spelling of 684343297 in words is "six hundred eighty-four million, three hundred forty-three thousand, two hundred ninety-seven".