678614430 has 96 divisors (see below), whose sum is σ = 1778285664. Its totient is φ = 165654528.

The previous prime is 678614399. The next prime is 678614479. The reversal of 678614430 is 34416876.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 694102 + ... + 695078.

It is an arithmetic number, because the mean of its divisors is an integer number (18523809).

Almost surely, 2^678614430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678614430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (889142832).

678614430 is an abundant number, since it is smaller than the sum of its proper divisors (1099671234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

678614430 is a wasteful number, since it uses less digits than its factorization.

678614430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 678614430 is about 26050.2289817191. The cubic root of 678614430 is about 878.7682621032.

The spelling of 678614430 in words is "six hundred seventy-eight million, six hundred fourteen thousand, four hundred thirty".