647294485 has 8 divisors (see below), whose sum is σ = 789487416. Its totient is φ = 509346240.

The previous prime is 647294423. The next prime is 647294491. The reversal of 647294485 is 584492746.

647294485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 44395569 + 602898916 = 6663^2 + 24554^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 647294485 - 2⁷ = 647294357 is a prime.

It is a super-2 number, since 2×647294485² = 837980300622830450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 1060834 + ... + 1061443.

It is an arithmetic number, because the mean of its divisors is an integer number (98685927).

Almost surely, 2^647294485 is an apocalyptic number.

It is an amenable number.

647294485 is a deficient number, since it is larger than the sum of its proper divisors (142192931).

647294485 is a wasteful number, since it uses less digits than its factorization.

647294485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122343.

The product of its digits is 1935360, while the sum is 49.

The square root of 647294485 is about 25441.9827254088. The cubic root of 647294485 is about 865.0355760703.

The spelling of 647294485 in words is "six hundred forty-seven million, two hundred ninety-four thousand, four hundred eighty-five".