63475217 has 6 divisors (see below), whose sum is σ = 68733702. Its totient is φ = 58592352.

The previous prime is 63475211. The next prime is 63475283. The reversal of 63475217 is 71257436.

It can be written as a sum of positive squares in 3 ways, for example, as 4477456 + 58997761 = 2116^2 + 7681^2 .

It is not a de Polignac number, because 63475217 - 2⁴ = 63475201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63475211) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 187628 + ... + 187965.

It is an arithmetic number, because the mean of its divisors is an integer number (11455617).

Almost surely, 2^63475217 is an apocalyptic number.

It is an amenable number.

63475217 is a deficient number, since it is larger than the sum of its proper divisors (5258485).

63475217 is a wasteful number, since it uses less digits than its factorization.

63475217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375619 (or 375606 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 63475217 is about 7967.1335497781. The cubic root of 63475217 is about 398.9037001449.

The spelling of 63475217 in words is "sixty-three million, four hundred seventy-five thousand, two hundred seventeen".