678547464 has 32 divisors (see below), whose sum is σ = 1938707520. Its totient is φ = 193870656.

The previous prime is 678547459. The next prime is 678547501. The reversal of 678547464 is 464745876.

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, 2019319 + ... + 2019654.

It is an arithmetic number, because the mean of its divisors is an integer number (60584610).

Almost surely, 2^678547464 is an apocalyptic number.

It is an amenable number.

678547464 is an abundant number, since it is smaller than the sum of its proper divisors (1260160056).

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

678547464 is a wasteful number, since it uses less digits than its factorization.

678547464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038989 (or 4038985 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 51.

The square root of 678547464 is about 26048.9436254141. The cubic root of 678547464 is about 878.7393553934.

The spelling of 678547464 in words is "six hundred seventy-eight million, five hundred forty-seven thousand, four hundred sixty-four".