684263119 has 2 divisors, whose sum is σ = 684263120. Its totient is φ = 684263118.

The previous prime is 684263057. The next prime is 684263159. The reversal of 684263119 is 911362486.

It is an a-pointer prime, because the next prime (684263159) can be obtained adding 684263119 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-684263119 is a prime.

It is a super-2 number, since 2×684263119² = 936432032047216322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (684263159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342131559 + 342131560.

It is an arithmetic number, because the mean of its divisors is an integer number (342131560).

Almost surely, 2^684263119 is an apocalyptic number.

684263119 is a deficient number, since it is larger than the sum of its proper divisors (1).

684263119 is an equidigital number, since it uses as much as digits as its factorization.

684263119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 684263119 is about 26158.4234807834. The cubic root of 684263119 is about 881.1997749221.

The spelling of 684263119 in words is "six hundred eighty-four million, two hundred sixty-three thousand, one hundred nineteen".