63475657 has 8 divisors (see below), whose sum is σ = 73098432. Its totient is φ = 53991600.

The previous prime is 63475613. The next prime is 63475663. The reversal of 63475657 is 75657436.

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

It is a cyclic number.

It is not a de Polignac number, because 63475657 - 2¹⁵ = 63442889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63475457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33694 + ... + 35527.

It is an arithmetic number, because the mean of its divisors is an integer number (9137304).

Almost surely, 2^63475657 is an apocalyptic number.

It is an amenable number.

63475657 is a deficient number, since it is larger than the sum of its proper divisors (9622775).

63475657 is a wasteful number, since it uses less digits than its factorization.

63475657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69359.

The product of its digits is 529200, while the sum is 43.

The square root of 63475657 is about 7967.1611631747. The cubic root of 63475657 is about 398.9046218549.

The spelling of 63475657 in words is "sixty-three million, four hundred seventy-five thousand, six hundred fifty-seven".