678329436 has 24 divisors (see below), whose sum is σ = 1625547280. Its totient is φ = 219998592.

The previous prime is 678329419. The next prime is 678329447. The reversal of 678329436 is 634923876.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763441 + ... + 764328.

Almost surely, 2^678329436 is an apocalyptic number.

It is an amenable number.

678329436 is an abundant number, since it is smaller than the sum of its proper divisors (947217844).

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

678329436 is a wasteful number, since it uses less digits than its factorization.

678329436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527813 (or 1527811 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 48.

The square root of 678329436 is about 26044.7583210135. The cubic root of 678329436 is about 878.6452277073.

The spelling of 678329436 in words is "six hundred seventy-eight million, three hundred twenty-nine thousand, four hundred thirty-six".