647675084 has 24 divisors (see below), whose sum is σ = 1330361760. Its totient is φ = 270072576.

The previous prime is 647675051. The next prime is 647675107. The reversal of 647675084 is 480576746.

It is a happy number.

It is a plaindrome in base 16.

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, 311549 + ... + 313620.

It is an arithmetic number, because the mean of its divisors is an integer number (55431740).

Almost surely, 2^647675084 is an apocalyptic number.

It is an amenable number.

647675084 is an abundant number, since it is smaller than the sum of its proper divisors (682686676).

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

647675084 is a wasteful number, since it uses less digits than its factorization.

647675084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625217 (or 625215 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 47.

The square root of 647675084 is about 25449.4613695457. The cubic root of 647675084 is about 865.2050853000.

The spelling of 647675084 in words is "six hundred forty-seven million, six hundred seventy-five thousand, eighty-four".