63450609 has 4 divisors (see below), whose sum is σ = 84600816. Its totient is φ = 42300404.

The previous prime is 63450599. The next prime is 63450617. The reversal of 63450609 is 90605436.

It is a happy number.

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 63450609 - 2¹⁷ = 63319537 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63450609.

It is not an unprimeable number, because it can be changed into a prime (63450619) 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, 10575099 + ... + 10575104.

It is an arithmetic number, because the mean of its divisors is an integer number (21150204).

Almost surely, 2^63450609 is an apocalyptic number.

It is an amenable number.

63450609 is a deficient number, since it is larger than the sum of its proper divisors (21150207).

63450609 is a wasteful number, since it uses less digits than its factorization.

63450609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21150206.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 63450609 is about 7965.5890554309. The cubic root of 63450609 is about 398.8521446376.

The spelling of 63450609 in words is "sixty-three million, four hundred fifty thousand, six hundred nine".