684513430 has 16 divisors (see below), whose sum is σ = 1233385344. Its totient is φ = 273525120.

The previous prime is 684513413. The next prime is 684513439. The reversal of 684513430 is 34315486.

It is a happy number.

It is a super-3 number, since 3×684513430³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684513439) 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, 24627 + ... + 44446.

It is an arithmetic number, because the mean of its divisors is an integer number (77086584).

Almost surely, 2^684513430 is an apocalyptic number.

684513430 is a deficient number, since it is larger than the sum of its proper divisors (548871914).

684513430 is a wasteful number, since it uses less digits than its factorization.

684513430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70071.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 684513430 is about 26163.2075632939. The cubic root of 684513430 is about 881.3072126898.

The spelling of 684513430 in words is "six hundred eighty-four million, five hundred thirteen thousand, four hundred thirty".