63461633 has 8 divisors (see below), whose sum is σ = 64535400. Its totient is φ = 62396800.

The previous prime is 63461627. The next prime is 63461659. The reversal of 63461633 is 33616436.

It can be written as a sum of positive squares in 4 ways, for example, as 25725184 + 37736449 = 5072^2 + 6143^2 .

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-63461633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63461633.

It is not an unprimeable number, because it can be changed into a prime (63461603) 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, 12941 + ... + 17157.

It is an arithmetic number, because the mean of its divisors is an integer number (8066925).

Almost surely, 2^63461633 is an apocalyptic number.

It is an amenable number.

63461633 is a deficient number, since it is larger than the sum of its proper divisors (1073767).

63461633 is a wasteful number, since it uses less digits than its factorization.

63461633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4467.

The product of its digits is 23328, while the sum is 32.

The square root of 63461633 is about 7966.2810018226. The cubic root of 63461633 is about 398.8752423483.

The spelling of 63461633 in words is "sixty-three million, four hundred sixty-one thousand, six hundred thirty-three".