678413652 has 24 divisors (see below), whose sum is σ = 1809103296. Its totient is φ = 193832448.

The previous prime is 678413629. The next prime is 678413663. The reversal of 678413652 is 256314876.

678413652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 4038093 + ... + 4038260.

It is an arithmetic number, because the mean of its divisors is an integer number (75379304).

Almost surely, 2^678413652 is an apocalyptic number.

It is an amenable number.

678413652 is an abundant number, since it is smaller than the sum of its proper divisors (1130689644).

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

678413652 is a wasteful number, since it uses less digits than its factorization.

678413652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8076367 (or 8076365 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 678413652 is about 26046.3750260953. The cubic root of 678413652 is about 878.6815880756.

The spelling of 678413652 in words is "six hundred seventy-eight million, four hundred thirteen thousand, six hundred fifty-two".