63896609 has 4 divisors (see below), whose sum is σ = 73024704. Its totient is φ = 54768516.

The previous prime is 63896579. The next prime is 63896617. The reversal of 63896609 is 90669836.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63896609 - 2²⁰ = 62848033 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63896009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4564037 + ... + 4564050.

It is an arithmetic number, because the mean of its divisors is an integer number (18256176).

Almost surely, 2^63896609 is an apocalyptic number.

It is an amenable number.

63896609 is a deficient number, since it is larger than the sum of its proper divisors (9128095).

63896609 is an equidigital number, since it uses as much as digits as its factorization.

63896609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9128094.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 63896609 is about 7993.5354506001. The cubic root of 63896609 is about 399.7844859885.

The spelling of 63896609 in words is "sixty-three million, eight hundred ninety-six thousand, six hundred nine".