647473485 has 16 divisors (see below), whose sum is σ = 1036272960. Its totient is φ = 345214080.

The previous prime is 647473439. The next prime is 647473513. The reversal of 647473485 is 584374746.

It is a happy number.

It is not a de Polignac number, because 647473485 - 2⁷ = 647473357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95250 + ... + 101820.

It is an arithmetic number, because the mean of its divisors is an integer number (64767060).

Almost surely, 2^647473485 is an apocalyptic number.

It is an amenable number.

647473485 is a deficient number, since it is larger than the sum of its proper divisors (388799475).

647473485 is a wasteful number, since it uses less digits than its factorization.

647473485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13148.

The product of its digits is 2257920, while the sum is 48.

The square root of 647473485 is about 25445.5002898351. The cubic root of 647473485 is about 865.1153064459.

The spelling of 647473485 in words is "six hundred forty-seven million, four hundred seventy-three thousand, four hundred eighty-five".