684214763 has 2 divisors, whose sum is σ = 684214764. Its totient is φ = 684214762.

The previous prime is 684214723. The next prime is 684214801. The reversal of 684214763 is 367412486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 684214763 - 2⁸ = 684214507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 684214763.

It is not a weakly prime, because it can be changed into another prime (684214723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342107381 + 342107382.

It is an arithmetic number, because the mean of its divisors is an integer number (342107382).

Almost surely, 2^684214763 is an apocalyptic number.

684214763 is a deficient number, since it is larger than the sum of its proper divisors (1).

684214763 is an equidigital number, since it uses as much as digits as its factorization.

684214763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 41.

The square root of 684214763 is about 26157.4991732772. The cubic root of 684214763 is about 881.1790166792.

The spelling of 684214763 in words is "six hundred eighty-four million, two hundred fourteen thousand, seven hundred sixty-three".