647574485 has 8 divisors (see below), whose sum is σ = 779120640. Its totient is φ = 516705424.

The previous prime is 647574479. The next prime is 647574491. The reversal of 647574485 is 584475746.

It is an interprime number because it is at equal distance from previous prime (647574479) and next prime (647574491).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-647574485 is a prime.

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, 167165 + ... + 170994.

It is an arithmetic number, because the mean of its divisors is an integer number (97390080).

Almost surely, 2^647574485 is an apocalyptic number.

It is an amenable number.

647574485 is a deficient number, since it is larger than the sum of its proper divisors (131546155).

647574485 is a wasteful number, since it uses less digits than its factorization.

647574485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338547.

The product of its digits is 3763200, while the sum is 50.

The square root of 647574485 is about 25447.4848462476. The cubic root of 647574485 is about 865.1602874915.

The spelling of 647574485 in words is "six hundred forty-seven million, five hundred seventy-four thousand, four hundred eighty-five".