684303399 has 12 divisors (see below), whose sum is σ = 1064472136. Its totient is φ = 421109712.

The previous prime is 684303391. The next prime is 684303421. The reversal of 684303399 is 993303486.

It is not a de Polignac number, because 684303399 - 2³ = 684303391 is a prime.

It is a super-2 number, since 2×684303399² = 936542283765906402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684303391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2924257 + ... + 2924490.

Almost surely, 2^684303399 is an apocalyptic number.

684303399 is a deficient number, since it is larger than the sum of its proper divisors (380168737).

684303399 is a wasteful number, since it uses less digits than its factorization.

684303399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5848766 (or 5848763 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 684303399 is about 26159.1933935280. The cubic root of 684303399 is about 881.2170655566.

The spelling of 684303399 in words is "six hundred eighty-four million, three hundred three thousand, three hundred ninety-nine".