678576252 has 24 divisors (see below), whose sum is σ = 1605647232. Its totient is φ = 223006000.

The previous prime is 678576221. The next prime is 678576259. The reversal of 678576252 is 252675876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678576259) 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, 397374 + ... + 399077.

It is an arithmetic number, because the mean of its divisors is an integer number (66901968).

Almost surely, 2^678576252 is an apocalyptic number.

It is an amenable number.

678576252 is an abundant number, since it is smaller than the sum of its proper divisors (927070980).

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

678576252 is a wasteful number, since it uses less digits than its factorization.

678576252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796529 (or 796527 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 48.

The square root of 678576252 is about 26049.4961947443. The cubic root of 678576252 is about 878.7517823260.

The spelling of 678576252 in words is "six hundred seventy-eight million, five hundred seventy-six thousand, two hundred fifty-two".