63394409 has 8 divisors (see below), whose sum is σ = 69233472. Its totient is φ = 57692880.

The previous prime is 63394381. The next prime is 63394439. The reversal of 63394409 is 90449336.

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 63394409 - 2⁸ = 63394153 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 (63394439) 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, 33419 + ... + 35264.

It is an arithmetic number, because the mean of its divisors is an integer number (8654184).

Almost surely, 2^63394409 is an apocalyptic number.

It is an amenable number.

63394409 is a deficient number, since it is larger than the sum of its proper divisors (5839063).

63394409 is a wasteful number, since it uses less digits than its factorization.

63394409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68767.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 63394409 is about 7962.0606001211. The cubic root of 63394409 is about 398.7343516427.

The spelling of 63394409 in words is "sixty-three million, three hundred ninety-four thousand, four hundred nine".