684370363 has 2 divisors, whose sum is σ = 684370364. Its totient is φ = 684370362.

The previous prime is 684370301. The next prime is 684370369. The reversal of 684370363 is 363073486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 684370363 - 2¹⁷ = 684239291 is a prime.

It is not a weakly prime, because it can be changed into another prime (684370369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342185181 + 342185182.

It is an arithmetic number, because the mean of its divisors is an integer number (342185182).

Almost surely, 2^684370363 is an apocalyptic number.

684370363 is a deficient number, since it is larger than the sum of its proper divisors (1).

684370363 is an equidigital number, since it uses as much as digits as its factorization.

684370363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 684370363 is about 26160.4732946482. The cubic root of 684370363 is about 881.2458090909.

The spelling of 684370363 in words is "six hundred eighty-four million, three hundred seventy thousand, three hundred sixty-three".