647498328 has 16 divisors (see below), whose sum is σ = 1618745880. Its totient is φ = 215832768.

The previous prime is 647498317. The next prime is 647498339. The reversal of 647498328 is 823894746.

It is an interprime number because it is at equal distance from previous prime (647498317) and next prime (647498339).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13489525 + ... + 13489572.

Almost surely, 2^647498328 is an apocalyptic number.

It is an amenable number.

647498328 is an abundant number, since it is smaller than the sum of its proper divisors (971247552).

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

647498328 is a wasteful number, since it uses less digits than its factorization.

647498328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26979106 (or 26979102 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The square root of 647498328 is about 25445.9884461186. The cubic root of 647498328 is about 865.1263708808.

The spelling of 647498328 in words is "six hundred forty-seven million, four hundred ninety-eight thousand, three hundred twenty-eight".